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Bunuel
Official Solution:

The most prominent characteristic of High-performance marketing firms is that they have a tendency to have concentrated greater executives in the direction of a smaller, more careful selection of a number of important businesses than is the case with other marketing firms.

A. that they have a tendency to have concentrated greater executives in the direction of a smaller, more careful selection of a number of important businesses than is the case with
B. that they tend to concentrate more executives to a smaller, more careful selection of a number of important businesses than toward
C. that they have a tendency to concentrate more executives on a smaller, more careful selection of a number of important businesses as opposed to
D. that they tend to concentrate more executives on a smaller, more carefully selected number of important businesses than do
E. the tendency to concentrate a greater amount of executives on a careful and small selection of a number of important businesses as opposed to

The original sentence correctly compares a characteristic of high-performance marketing firms with that of other marketing firms. However, the original sentence is unnecessarily wordy in its use of “they have a tendency” as well as “in the direction of” and “is the case.” Moreover, the use of the present perfect verb construction “have concentrated” is inappropriate, since the simple present tense is sufficient to describe a regular feature of “marketing firms.”
  1. This choice is incorrect as as explained above.
  2. This choice is clear and concise. However, in its use of “toward other marketing firms,” this choice does not draw the correct and logical comparison between the behavior of top marketing firms and the behavior of other marketing firms. Instead, this choice illogically compares the level of resources concentrated on certain important customers and the resources directed toward other marketing firms. Finally, the construction “concentrate more resource's to” is unidiomatic; the appropriate idiom is “to concentrate on.”
  3. This choice incorrectly draws a comparison between the level of resources concentrated on a number of important customers and the resources directed towards other marketing firms in its use of “as opposed to other marketing firms.” The correct comparison is between the behavior of top marketing firms and that of other marketing firms.
  4. CORRECT. This choice correctly draws a comparison between a characteristic of top marketing firms and that of other marketing firms, and is otherwise clear and concise.
  5. This choice incorrectly draws a comparison between the level of resources directed toward a number of important customers and the resources directed toward other marketing firms in its use of “as opposed to.” The correct comparison is between top marketing firms and other marketing firms.

Answer: D

Isn't 'most prominent characteristic' the subject? 'they' cannot refer to 'marketing firms'.
Am I wrong?

If a pronoun is the subject of a clause, it is not required that its antecedent be also the subject of another clause. Therefore the pronoun "they" is alright, it correctly refers to the "marketing firms".
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Hi,

I have query related to correct option choice D.

option choice D

that they tend to concentrate more executives on a smaller, more carefully selected number of important businesses than do

If we look at the above option choice there are two attributes described about the number of important businesses.
smaller
more carefully selected

Isn't it incorrect to join the two attributes by a comma.

I eliminated the choice D because i felt that correct choice should be

that they tend to concentrate more executives on a smaller and more carefully selected number of important businesses than do

Experts kindly clarify.

Thanks
Sahil
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sahilmalhotra01
Hi,

I have query related to correct option choice D.

option choice D

that they tend to concentrate more executives on a smaller, more carefully selected number of important businesses than do

If we look at the above option choice there are two attributes described about the number of important businesses.
smaller
more carefully selected

Isn't it incorrect to join the two attributes by a comma.

I eliminated the choice D because i felt that correct choice should be

that they tend to concentrate more executives on a smaller and more carefully selected number of important businesses than do

Experts kindly clarify.

Thanks
Sahil

It is alright to use comma instead of "and" between coordinate adjectives . (Cordinate adjectives are adjectives that come in sequence, one after the other, and refer to the same noun.)

Example:

It is a bright, sunny day..... correct
He is a tall, intelligent person..... correct

In the subject question "smaller" and "more carefully selected" are cordinate adjectives (type: comparative) that modify the noun "number", and hence use of comma is alright.
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Hi

is there an error between more careful selection of a number of important business and carefully selected number of important business?

sayantanc2k
tae808
Bunuel
Official Solution:

The most prominent characteristic of High-performance marketing firms is that they have a tendency to have concentrated greater executives in the direction of a smaller, more careful selection of a number of important businesses than is the case with other marketing firms.

A. that they have a tendency to have concentrated greater executives in the direction of a smaller, more careful selection of a number of important businesses than is the case with
B. that they tend to concentrate more executives to a smaller, more careful selection of a number of important businesses than toward
C. that they have a tendency to concentrate more executives on a smaller, more careful selection of a number of important businesses as opposed to
D. that they tend to concentrate more executives on a smaller, more carefully selected number of important businesses than do
E. the tendency to concentrate a greater amount of executives on a careful and small selection of a number of important businesses as opposed to

The original sentence correctly compares a characteristic of high-performance marketing firms with that of other marketing firms. However, the original sentence is unnecessarily wordy in its use of “they have a tendency” as well as “in the direction of” and “is the case.” Moreover, the use of the present perfect verb construction “have concentrated” is inappropriate, since the simple present tense is sufficient to describe a regular feature of “marketing firms.”
  1. This choice is incorrect as as explained above.
  2. This choice is clear and concise. However, in its use of “toward other marketing firms,” this choice does not draw the correct and logical comparison between the behavior of top marketing firms and the behavior of other marketing firms. Instead, this choice illogically compares the level of resources concentrated on certain important customers and the resources directed toward other marketing firms. Finally, the construction “concentrate more resource's to” is unidiomatic; the appropriate idiom is “to concentrate on.”
  3. This choice incorrectly draws a comparison between the level of resources concentrated on a number of important customers and the resources directed towards other marketing firms in its use of “as opposed to other marketing firms.” The correct comparison is between the behavior of top marketing firms and that of other marketing firms.
  4. CORRECT. This choice correctly draws a comparison between a characteristic of top marketing firms and that of other marketing firms, and is otherwise clear and concise.
  5. This choice incorrectly draws a comparison between the level of resources directed toward a number of important customers and the resources directed toward other marketing firms in its use of “as opposed to.” The correct comparison is between top marketing firms and other marketing firms.

Answer: D

Isn't 'most prominent characteristic' the subject? 'they' cannot refer to 'marketing firms'.
Am I wrong?

If a pronoun is the subject of a clause, it is not required that its antecedent be also the subject of another clause. Therefore the pronoun "they" is alright, it correctly refers to the "marketing firms".
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jjindal
Hi

is there an error between more careful selection of a number of important business and carefully selected number of important business?


There is a difference between "more careful selection" and " carefully selected"

more careful selection: comparative adjective + noun.... needs another element to compare with (more than what?)
carefully selected: adverb + adjective..... does not need another element to compare with, but needs a noun after selected.
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Can someone explain the comparison here .

If I take the example of correct option D

" that theytendto concentrate more executives on a smaller, more carefully selected number of important businesses than do"

does the comparison make sense here ??

Should not the structure be like " more executes than directors " ??
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Choice E says "a greater amount of executives". This should be wrong as a greater amount of executives gives a quantity.

Thanks
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I think this is a poor-quality question and I don't agree with the explanation. 'The most prominent characterisitc' should be followed by a trait/characteristic. 'They' is an incorrect pronoun for characteristic, which makes option E the viable choice in the given lot.
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tae808
Bunuel
Official Solution:

The most prominent characteristic of High-performance marketing firms is that they have a tendency to have concentrated greater executives in the direction of a smaller, more careful selection of a number of important businesses than is the case with other marketing firms.

A. that they have a tendency to have concentrated greater executives in the direction of a smaller, more careful selection of a number of important businesses than is the case with
B. that they tend to concentrate more executives to a smaller, more careful selection of a number of important businesses than toward
C. that they have a tendency to concentrate more executives on a smaller, more careful selection of a number of important businesses as opposed to
D. that they tend to concentrate more executives on a smaller, more carefully selected number of important businesses than do
E. the tendency to concentrate a greater amount of executives on a careful and small selection of a number of important businesses as opposed to

The original sentence correctly compares a characteristic of high-performance marketing firms with that of other marketing firms. However, the original sentence is unnecessarily wordy in its use of “they have a tendency” as well as “in the direction of” and “is the case.” Moreover, the use of the present perfect verb construction “have concentrated” is inappropriate, since the simple present tense is sufficient to describe a regular feature of “marketing firms.”
  1. This choice is incorrect as as explained above.
  2. This choice is clear and concise. However, in its use of “toward other marketing firms,” this choice does not draw the correct and logical comparison between the behavior of top marketing firms and the behavior of other marketing firms. Instead, this choice illogically compares the level of resources concentrated on certain important customers and the resources directed toward other marketing firms. Finally, the construction “concentrate more resource's to” is unidiomatic; the appropriate idiom is “to concentrate on.”
  3. This choice incorrectly draws a comparison between the level of resources concentrated on a number of important customers and the resources directed towards other marketing firms in its use of “as opposed to other marketing firms.” The correct comparison is between the behavior of top marketing firms and that of other marketing firms.
  4. CORRECT. This choice correctly draws a comparison between a characteristic of top marketing firms and that of other marketing firms, and is otherwise clear and concise.
  5. This choice incorrectly draws a comparison between the level of resources directed toward a number of important customers and the resources directed toward other marketing firms in its use of “as opposed to.” The correct comparison is between top marketing firms and other marketing firms.

Answer: D

Isn't 'most prominent characteristic' the subject? 'they' cannot refer to 'marketing firms'.
Am I wrong?

If a pronoun is the subject of a clause, it is not required that its antecedent be also the subject of another clause. Therefore the pronoun "they" is alright, it correctly refers to the "marketing firms".


Can you help me understand the rule in more detail.
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Hello All,
While attempting this question, I opted for option D but I would like to know why option C is incorrect?
Can anyone please help me to understand the meaning of the sentence and the mistake in option C?

Thank you in Advance
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I think this is a high-quality question and I agree with explanation. "This choice is incorrect AS AS explained above."
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Just in case anyone is looking for further explanation through concept understanding- refer Parallelism 4th point here- https://gmatclub.com/forum/e-gmat-all-s ... l#p2065699
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D
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I think this is a high-quality question and the explanation isn't clear enough, please elaborate. The correct answer given is option D but it ends with businesses than do. If we add it to the sentence, businesses than do other marketing firms, does not make sense.
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I agree that D should be the best of the choices, but please consider “a ... selected number of businesses” does not make sense. We are not selecting number but the businesses.
Bunuel
Official Solution:

The most prominent characteristic of high-performance marketing firms is that they have a tendency to have concentrated greater executives in the direction of a smaller, more careful selection of a number of important businesses than is the case with other marketing firms.

A. that they have a tendency to have concentrated greater executives in the direction of a smaller, more careful selection of a number of important businesses than is the case with
B. that they tend to concentrate more executives to a smaller, more careful selection of a number of important businesses than toward
C. that they have a tendency to concentrate more executives on a smaller, more careful selection of a number of important businesses as opposed to
D. that they tend to concentrate more executives on a smaller, more carefully selected number of important businesses than do
E. the tendency to concentrate a greater amount of executives on a careful and small selection of a number of important businesses as opposed to

The original sentence correctly compares a characteristic of high-performance marketing firms with that of other marketing firms. However, the original sentence is unnecessarily wordy in its use of “they have a tendency” as well as “in the direction of” and “is the case.” Moreover, the use of the present perfect verb construction “have concentrated” is inappropriate, since the simple present tense is sufficient to describe a regular feature of “marketing firms.”
  1. This choice is incorrect as as explained above.
  2. This choice is clear and concise. However, in its use of “toward other marketing firms,” this choice does not draw the correct and logical comparison between the behavior of top marketing firms and the behavior of other marketing firms. Instead, this choice illogically compares the level of resources concentrated on certain important customers and the resources directed toward other marketing firms. Finally, the construction “concentrate more resources to” is unidiomatic; the appropriate idiom is “to concentrate on.”
  3. This choice incorrectly draws a comparison between the level of resources concentrated on a number of important customers and the resources directed towards other marketing firms in its use of “as opposed to other marketing firms.” The correct comparison is between the behavior of top marketing firms and that of other marketing firms.
  4. CORRECT. This choice correctly draws a comparison between a characteristic of top marketing firms and that of other marketing firms, and is otherwise clear and concise.
  5. This choice incorrectly draws a comparison between the level of resources directed toward a number of important customers and the resources directed toward other marketing firms in its use of “as opposed to.” The correct comparison is between top marketing firms and other marketing firms.

Answer: D

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I think this is a high-quality question and I agree with explanation.
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In Option D, what does "do" refer to ?

Is it referring to tend ? or concentrate ? or selected ?

How does the sentence makes sense after replacing any of these ?
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