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gmat_perfect wrote:According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive internet data over regular telephone lines with speeds much higher than is currently possible.

A. with speeds much higher than is
B. with speeds that are much higher than are
C. at much higher speeds as are
D. at much higher speeds than that
E. at speeds much higher than are

OA: Later

gmat_perfect wrote:According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive internet data over regular telephone lines with speeds much higher than is currently possible.

A. with speeds much higher than is - Incorrect - 'at' is correct and not 'with'
B. with speeds that are much higher than are - Incorrect - Same as A
C. at much higher speeds as are - Incorrect - higher than is correct and not higher as
D. at much higher speeds than that - Incorrect - we need verb in later part
E. at speeds much higher than are - Correct

OA: Later

gmat_perfect wrote:According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive internet data over regular telephone lines with speeds much higher than is currently possible.

A. with speeds much higher than is - Speeds is plural - OUT
B. with speeds that are much higher than are Wordy, construction does not convey the intended meaning
C. at much higher speeds as are - usage of as here is wrong
D. at much higher speeds than that order of words "much higher speeds" is wrong.
E. at speeds much higher than are - Winner

gmat_perfect wrote:According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive internet data over regular telephone lines with speeds much higher than is currently possible.

gmat_perfect wrote:According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive internet data over regular telephone lines with speeds much higher than is currently possible.

A. with speeds much higher than is
B. with speeds that are much higher than are
C. at much higher speeds as are
D. at much higher speeds than that
E. at speeds much higher than are

OA: Later

gmat_perfect wrote:

gmat_perfect wrote:According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive internet data over regular telephone lines with speeds much higher than is currently possible.

A. with speeds much higher than is
B. with speeds that are much higher than are
C. at much higher speeds as are
D. at much higher speeds than that
E. at speeds much higher than are

1. In the option A, if we used "ARE" in stead of "IS", would it be correct?

No, the subject is speeds: the speeds ARE currently possible. Also, the correct idiom is that you travel not with a given speed but at a given speed.

2. What is the exact cause for which option D is wrong?

the pronoun that is singular, but it's referring to speeds, a plural noun.

GMATGuruNY wrote:

gmat_perfect wrote:

gmat_perfect wrote:According to analysts, an alliance between three major personal computer companies and most of the nation’s largest local telephone companies would enable customers to receive internet data over regular telephone lines with speeds much higher than is currently possible.

A. with speeds much higher than is
B. with speeds that are much higher than are
C. at much higher speeds as are
D. at much higher speeds than that
E. at speeds much higher than are

1. In the option A, if we used "ARE" in stead of "IS", would it be correct?

No, the subject is speeds: the speeds ARE currently possible. Also, the correct idiom is that you travel not with a given speed but at a given speed.

2. What is the exact cause for which option D is wrong?

the pronoun that is singular, but it's referring to speeds, a plural noun.

Thanks a lot. I got it.
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Thanks again.

GMATMadeEasy wrote:@GMATGURUNY :

2. What is the exact cause for which option D is wrong?
the pronoun that is singular, but it's referring to speeds, a plural noun.

1. What role "that " is playing in option D
2. If we replace "that" with "those" in answer choice D, it becomes correct answer choice ?
3. D does not miss the verb ?

Thanks .