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Triathletes learn to swim, cycle, and run as straightly as possible in a line to conserve energy, a major concern on a course that extends beyond 140 miles.

(A) as straightly as possible in a line to conserve energy,
Incorrect! Straight should modify athletes and not the act of learning.

(B) as straight in a line as is possible to conserve energy, an undertaking that is
Seems legit!

(C) in as straight a line as possible to conserve energy,
Incorrect! [in as straight a line] is awkward construction and distorts the meaning

(D) as straightly as is possible in a line to conserve energy,
Incorrect! Straight should modify athletes and not the act of learning.

(E) in as straight a line as possible to conserve energy, an undertaking that is
Incorrect! [in as straight a line] is awkward construction and distorts the meaning

IMO Option B
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Triathletes learn to swim, cycle, and run as straightly as possible in a line to conserve energy, a major concern on a course that extends beyond 140 miles.

(A) as straightly as possible in a line to conserve energy,
(B) as straight in a line as is possible to conserve energy, an undertaking that is
(C) in as straight a line as possible to conserve energy,
(D) as straightly as is possible in a line to conserve energy,
(E) in as straight a line as possible to conserve energy, an undertaking that is


 


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(A) as straightly as possible in a line to conserve energy,
--> "as straightly as" is not correct as it is with reference to a direction

(B) as straight in a line as is possible to conserve energy, an undertaking that is
--> " an undertaking that is" is not required as a concise answer is available

(C) in as straight a line as possible to conserve energy,
--> Looks ok.

(D) as straightly as is possible in a line to conserve energy,
--> "as straightly as" is not correct as it is with reference to a direction

(E) in as straight a line as possible to conserve energy, an undertaking that is
--> " an undertaking that is" is not required as a concise answer is available

IMHO Option C
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Triathletes learn to swim, cycle, and run as straightly as possible in a line to conserve energy, a major concern on a course that extends beyond 140 miles.

(A) as straightly as possible in a line to conserve energy,

Use of straightly is incorrect

(B) as straight in a line as is possible to conserve energy, an undertaking that is

"Triathletes learn as straight in a line ...", this is incorrect

(C) in as straight a line as possible to conserve energy,

The modifier placement is not correct. It can modify conserving energy or any of the activity.

(D) as straightly as is possible in a line to conserve energy,

Use of straightly is incorrect

(E) in as straight a line as possible to conserve energy, an undertaking that is

This is correct.

IMO E
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the correct answer is B,
we can eliminate all the answer with straightly ,therefore A and D
run in as is wrong
therefore choice C and E are wrong
we are left with choice B
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Triathletes learn to swim, cycle, and run as straightly as possible in a line to conserve energy, a major concern on a course that extends beyond 140 miles.

(A) as straightly as possible in a line to conserve energy, - Correct
(B) as straight in a line as is possible to conserve energy, an undertaking that is - modifier error
(C) in as straight a line as possible to conserve energy, - "in" is not approprite
(D) as straightly as is possible in a line to conserve energy, - "is" makes D wrong
(E) in as straight a line as possible to conserve energy, an undertaking that is - The same as in C and B
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Triathletes learn to swim, cycle, and run as straightly as possible in a line to conserve energy, a major concern on a course that extends beyond 140 miles.

(A) as straightly as possible in a line to conserve energy

Comparison is wrong
(B) as straight in a line as is possible to conserve energy, an undertaking that is
Comparison is wrong
(C) in as straight a line as possible to conserve energy,
Comparison is wrong
(D) as straightly as is possible in a line to conserve energy,
Wrong comparison
(E) in as straight a line as possible to conserve energy, an undertaking that is
Correct

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Bunuel
Triathletes learn to swim, cycle, and run as straightly as possible in a line to conserve energy, a major concern on a course that extends beyond 140 miles.

(A) as straightly as possible in a line to conserve energy,
(B) as straight in a line as is possible to conserve energy, an undertaking that is
(C) in as straight a line as possible to conserve energy,
(D) as straightly as is possible in a line to conserve energy,
(E) in as straight a line as possible to conserve energy, an undertaking that is


 


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as...as, straightly vs straight, redundancy

as...as -- ACDE uses correct idiom form

straight vs straightly... line is noun, straight is adjective, straightly is an adverb which can't modify noun. C E remain

a undertaking that is ... is redundant.. C remains

Ans C
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Bunuel
Triathletes learn to swim, cycle, and run as straightly as possible in a line to conserve energy, a major concern on a course that extends beyond 140 miles.

(A) as straightly as possible in a line to conserve energy,
(B) as straight in a line as is possible to conserve energy, an undertaking that is
(C) in as straight a line as possible to conserve energy,
(D) as straightly as is possible in a line to conserve energy,
(E) in as straight a line as possible to conserve energy, an undertaking that is

 


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as straightly.... is not correct usage so ELIMINATE A and D

Next split is whether to include an undertaking that is or not. Now imagine the sentence without that part:
It mentions that ...learn to swim, cycle, and run.... to conserve energy, a major concern. This makes it feel that learning to swim, cycle and run is a major concern, not conserving energy, which is why adding that part is important so ELIMINATE C

Between B and E, obviously E sounds more correct and hence is the answer. ELIMINATE B

Answer - E
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Bunuel
Triathletes learn to swim, cycle, and run as straightly as possible in a line to conserve energy, a major concern on a course that extends beyond 140 miles.

(A) as straightly as possible in a line to conserve energy,
(B) as straight in a line as is possible to conserve energy, an undertaking that is
(C) in as straight a line as possible to conserve energy,
(D) as straightly as is possible in a line to conserve energy,
(E) in as straight a line as possible to conserve energy, an undertaking that is


 


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ANSWER C

Core sentence: Triathletes learn to swim, cycle, and run in a straight line to conserve energy.

Key split: in a straight line vs as straight/straightly in a line. Here I would choose the first one in a straight line. It's simpler and concise. A, B and D are out.

Between C and E, the modifier "conserving energy" can be compared to "major concern" directly

Hence C
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Bunuel
Triathletes learn to swim, cycle, and run as straightly as possible in a line to conserve energy, a major concern on a course that extends beyond 140 miles.

(A) as straightly as possible in a line to conserve energy,
(B) as straight in a line as is possible to conserve energy, an undertaking that is
(C) in as straight a line as possible to conserve energy,
(D) as straightly as is possible in a line to conserve energy,
(E) in as straight a line as possible to conserve energy, an undertaking that is


 


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Official Explanation is pinned as BEST Reply HERE.
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AndrewN
What remains
Quote:
(C) in as straight a line as possible to conserve energy,
(E) in as straight a line as possible to conserve energy, an undertaking that is
Split #3: the absence or presence of an undertaking that is

Nothing separates (C) from (E) other than this extra bit tacked on to the end of (E). Is it necessary? Ask yourself what is a major concern and supply the answer that each sentence suggests. The correct answer should reveal itself.

Q: What is a major concern?
A: To conserve energy. (Answer choice (C).)

Q: What is a major concern?
A: An undertaking. (Answer choice (E).)

Answer choice (C) is much more direct, while (E) focuses on a process that requires further explanation. The extra words simply are not warranted, and we can safely choose (C).
Hi AndrewN

"a major concern" is a noun modifier that should modify a noun.
In choice C this noun modifier does not modify a noun but rather modifies a purpose/verb phrase i.e. to conserve energy.
In choice E, this apparent error is done away with by introducing "an undertaking", which is a noun and which unarguably refers back to "to conserve energy".

As per my experience, on GMAT, correct answer choice includes extra words such as undertaking, phenomenon, situation, circumstance, practice and the answer choices that do not include these extra words are incorrect compared to these extra words answer choices.

Request you to revisit this for the betterment of all. Thanks.

++KarishmaB egmat
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