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On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited

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On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited the planet Mars and succeeded in its mission to contribute to Martian atmospheric studies, mapping Martian surface features from the lowest possible altitude, and detect heat sources from Martian volcanoes in search of evidence of recent volcanic activity.

A) to contribute to Martian atmospheric studies, and mapping Martian surface features from the lowest possible altitude, it detected

B) to contribute to Martian atmospheric studies, while mapping the Martian surface features from the lowest possible altitude, detecting

C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect

D) contributing to Martian atmospheric studies, mapping the Martian surface from the lowest possible altitude, and detecting

E) contributing to Martian atmospheric studies, it had mapped the Martian surface from the lowest possible altitude, and detected

Day 19 Question of the Verbal Contest: Race Against the GMAT Club Timer
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[Reveal] Spoiler: OA

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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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Here is my thought on this. rephrasing as "prep. phrase, Object orbited Mars and succeeded 'pre. phrase' to X, Y and Z. ".. Both C and D will fit this description.

On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited the planet Mars and succeeded in its mission to contribute to Martian atmospheric studies, mapping Martian surface features from the lowest possible altitude, and detect heat sources from Martian volcanoes in search of evidence of recent volcanic activity.

A) to contribute to Martian atmospheric studies, and mapping Martian surface features from the lowest possible altitude, it detected
- the last phrase 'it detected heat...' incorrect pronoun does not point to a specific antecedent.
B) to contribute to Martian atmospheric studies, while mapping the Martian surface features from the lowest possible altitude, detecting
- last two phrases are incorrect. while mapping..., detecting... does not fit in correctly. there should have been at least a conjunction between the two. both these phrases are not modifying the sentence correctly.
C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect
- seems correct, where the phrases fits well with the overall sentence structure.
D) contributing to Martian atmospheric studies, mapping the Martian surface from the lowest possible altitude, and detecting
- this sentence seems close enough, but my only explanation is, the action has already taken place and the previous option fits well. I am not fully sure of this.
E) contributing to Martian atmospheric studies, it had mapped the Martian surface from the lowest possible altitude, and detected
- incorrect tense usage here, especially 'had' is used incorrectly
Day 19 Question of the Verbal Contest: Race Against the GMAT Club Timer
Please make sure to post a brief reply without revealing your solution to enter the contest!
[/quote]

I think the answer is
[Reveal] Spoiler:
C
, but it could also be
[Reveal] Spoiler:
D
. I am waiting for OA to explain. Sorry I am just a beginner with SC.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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souvik101990 wrote:
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On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited the planet Mars and succeeded in its mission to contribute to Martian atmospheric studies, mapping Martian surface features from the lowest possible altitude, and detect heat sources from Martian volcanoes in search of evidence of recent volcanic activity.

A) to contribute to Martian atmospheric studies, and mapping Martian surface features from the lowest possible altitude, it detected

B) to contribute to Martian atmospheric studies, while mapping the Martian surface features from the lowest possible altitude, detecting

C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect

D) contributing to Martian atmospheric studies, mapping the Martian surface from the lowest possible altitude, and detecting

E) contributing to Martian atmospheric studies, it had mapped the Martian surface from the lowest possible altitude, and detected

Day 19 Question of the Verbal Contest: Race Against the GMAT Club Timer
Please make sure to post a brief reply without revealing your solution to enter the contest!


Well I am starting again for GMAT :) after a break.

According to this question. Spacecraft orbited the planet Mars and succeeded in its mission, so what was the mission

contribute to studies

map the martian surface from the lowest possible altitude,

and detect.....

Only one option fits the bill

I hope I am right.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited the planet Mars and succeeded in its mission to contribute to Martian atmospheric studies, mapping Martian surface features from the lowest possible altitude, and detect heat sources from Martian volcanoes in search of evidence of recent volcanic activity.

A) to contribute to Martian atmospheric studies, and mapping Martian surface features from the lowest possible altitude, it detected
B) to contribute to Martian atmospheric studies, while mapping the Martian surface features from the lowest possible altitude, detecting
C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect
D) contributing to Martian atmospheric studies, mapping the Martian surface from the lowest possible altitude, and detecting
E) contributing to Martian atmospheric studies, it had mapped the Martian surface from the lowest possible altitude, and detected

This is a question of parallelism.
The NASA spacecraft did 3 things.
1. contribute
2. map and
3. detect

Option C is the only one satisfying to X, Y and Z parallelism rule.

D introduces forced parallelism distorting the meaning.

E uses past perfect tense improperly.

B uses while and detecting incorrectly.

In A, there is parallelism error and the sentence in the question and sentence in option A are different whereas they should be same according to GMAT question rule.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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New post 06 Aug 2015, 12:29
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This passage basically lists the mission objectives of the Mars bound spacecraft. So the options which are unnecessarily ending with 'ing' can easily be eliminated.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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Unnecessary took extra time. 1min45sec.
The question can easily be solved if you see what actually is asked.
souvik101990 Option A is different from the underlined portion of Question. Kindly correct it.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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Although this question has 2 groups of 3 vs 2 answer choices, this question is still of high level and so is a good question. The group with 3 answer choices is incorect and that eases the question to answer a bit.

Rest two answer choices are, by themselves, are grammatically correct and so one needs to have concept of meaning and preferenc of meaning change over grammer to answer this question. This question clearly demonstrate the preference of meaning over just grammer rules to answer the question.

Good question. Waiting for OA.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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Interesting.

I think C is right, but why is D wrong? (it does not sound good, but what is the explanation?)

C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect

D) contributing to Martian atmospheric studies, mapping the Martian surface from the lowest possible altitude, and detecting
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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I think A B and C are out because they suggest mission was to contribute to studies.
Had in option E looks awkward,
Hence going with D

OA can always surprise :o
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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souvik101990 wrote:
Image

On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited the planet Mars and succeeded in its mission to contribute to Martian atmospheric studies, mapping Martian surface features from the lowest possible altitude, and detect heat sources from Martian volcanoes in search of evidence of recent volcanic activity.

A) to contribute to Martian atmospheric studies, and mapping Martian surface features from the lowest possible altitude, it detected

B) to contribute to Martian atmospheric studies, while mapping the Martian surface features from the lowest possible altitude, detecting

C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect

D) contributing to Martian atmospheric studies, mapping the Martian surface from the lowest possible altitude, and detecting

E) contributing to Martian atmospheric studies, it had mapped the Martian surface from the lowest possible altitude, and detected

Day 19 Question of the Verbal Contest: Race Against the GMAT Club Timerer
Please make sure to post a brief reply without revealing your solution to enter the contest!


Map and Detect seems to be the ways how the contribution is done. From available options C seems better than the rest.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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Every mission has a purpose. The infinitive’s sole is purpose is to indicate such purpose; a participle is no alternative to an infinite to express the right meaning, notwithstanding the correctness of the grammar. This dumps D
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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A) to contribute to Martian atmospheric studies, and mapping Martian surface features from the lowest possible altitude, it detected

B) to contribute to Martian atmospheric studies, while mapping the Martian surface features from the lowest possible altitude, detecting

C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect

D) contributing to Martian atmospheric studies, mapping the Martian surface from the lowest possible altitude, and detecting

E) contributing to Martian atmospheric studies, it had mapped the Martian surface from the lowest possible altitude, and detected[/quote]

Ans : C

A) parallelism error : to contribute..., and mapping, it detected
B) Parallelism error : to contribute... while mapping.. detecting
C) Seems correct : it describe 3 tasks... to contribute... to map... and to detect...
D and E both change the meaning by using present continuous tense +ing form of verb. E uses past perfect in first part of the parallel structure and simple past in second.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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Bit stumped between two choices. Not sure what the intended meaning of the sentence is.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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Easy one. We have to use the infinitive of purpose with mission, therefore the participle form is out. Only 1 option maintains parallelism.

souvik101990 could you correct Option A? It is not the same as the underlined portion of the sentence.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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daagh wrote:
Every mission has a purpose. The infinitive’s sole is purpose is to indicate such purpose; a participle is no alternative to an infinite to express the right meaning, notwithstanding the correctness of the grammar. This dumps D


Daagh-I am not 100% sure but here is my take on this.

ABE can be directly eliminated. Between C and D, if you look at C, it says that the spacecraft succeeded to contribute? I think the intended meaning should be contribute to succeed or something that Option D says- succeeded by contributing.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited the planet Mars and succeeded in its mission to contribute to Martian atmospheric studies, mapping Martian surface features from the lowest possible altitude, and detect heat sources from Martian volcanoes in search of evidence of recent volcanic activity.

A) to contribute to Martian atmospheric studies, and mapping Martian surface features from the lowest possible altitude, it detected

B) to contribute to Martian atmospheric studies, while mapping the Martian surface features from the lowest possible altitude, detecting

C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect

D) contributing to Martian atmospheric studies, mapping the Martian surface from the lowest possible altitude, and detecting

E) contributing to Martian atmospheric studies, it had mapped the Martian surface from the lowest possible altitude, and detected


Well in my view, in Option D there should be a comma after the word "mission" followed by verb-ing modifiers "contributing..,mapping... and detecting..." in order to give the result of the preceding clause(Answering the question what was the result of the successful mission?).

Since a comma is missing in option D i eliminate it.

Hence the answer is C.....waiting for the OA
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited the planet Mars and succeeded in its mission to contribute to Martian atmospheric studies, mapping Martian surface features from the lowest possible altitude, and detect heat sources from Martian volcanoes in search of evidence of recent volcanic activity.

A) to contribute to Martian atmospheric studies, and mapping Martian surface features from the lowest possible altitude, it detected=> not ||el

B) to contribute to Martian atmospheric studies, while mapping the Martian surface features from the lowest possible altitude, detecting=> not ||el

C) to contribute to Martian atmospheric studies, map the Martian surface from the lowest possible altitude, and detect=> perfect

D) contributing to Martian atmospheric studies, mapping the Martian surface from the lowest possible altitude, and detecting=>changes the meaning

E) contributing to Martian atmospheric studies, it had mapped the Martian surface from the lowest possible altitude, and detecting=>changes the meaning

Label : Green -> ||el objects
This is a 3-2 split; D & E may misguide 'coz the -ing phrase is seemingly ||el; but does not sound logical.

PS. I do not read the option A at all; so did not realize that it is actually different form the underlined portion; don't think that should ever happen in GMAT though

Rgds.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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caught between C and D.....waiting for the OA..
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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Isn't the correct idiom is "Succeed + In + V-ing"?
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited [#permalink]

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New post 27 Apr 2017, 00:07
I got the answer as 'C' and eliminated 'A' and 'B' because they were not parallel. Please confirm. Thanks.
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Re: On November 14th, 1971, the unmanned NASA spacecraft Mariner 9 orbited   [#permalink] 27 Apr 2017, 00:07

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