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Bunuel
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Federal government financing is an essential key in the survival of th 16 Jul 2018, 02:09
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

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5% (low)

Question Stats:

80% (00:34) correct 20% (00:43) wrong based on 515 sessions

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Federal government financing is an essential key in the survival of the interstate rail system.


A. an essential key in

B. an essential key for

C. essential for

D. essential in

E. essential
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Official Answer
C
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Federal government financing is an essential key in the survival of th 16 Jul 2018, 02:24
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+1 for C.

A. an essential key in

B. an essential key for

C. essential for --> Correct, 'essential for' and not 'essential in'
e.g. :
A good strategy is essential for GMAT. Correct
A good strategy is essential in GMAT. Incorrect

D. essential in

E. essential

Hence, C.
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Federal government financing is an essential key in the survival of th 16 Jul 2018, 05:53
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Key itself means essential. Therefore, essential key is redundant. A and B are gone. The correct idiom is 'essential for.' Therefore D and E are gone. C is the correct
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Federal government financing is an essential key in the survival of th 16 Jul 2018, 11:37
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Essential for is correct Idiomatic usage, with (C) as well.
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Federal government financing is an essential key in the survival of th 02 Apr 2019, 05:12
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OFFICIAL EXPLANATION

Essential for not essential in
The original sentence contains the redundant phrase "essential key" where
"essential" would suffice. In addition, the phrase "essential . . . in the survival" is
unidiomatic. The proper idiom is "essential for the survival."
(A) This choice is incorrect as it repeats the original sentence.
(B) This choice correctly uses the idiom "essential . . .for the survival." However, the
phrase "essential key" is redundant; something "key" is by definition "essential".
(C) CORRECT. This choice replaces the redundant phrase "an essential key" with the
more concise "is essential." In addition, the idiom "essential . . .for the survival"
replaces the unidiomatic "essential . . . in the survival."
(D) This choice replaces the redundant phrase "an essential key" with the more
concise "is essential." However, it uses the unidiomatic "essential in the survival"
instead of the idiomatic "essential for the survival."
(E) This choice replaces the redundant phrase "an essential key" with the more
concise "is essential." However, the phrase "is essential the survival" is nonsensical
without a connecting preposition between "essential" and "the survival."
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Federal government financing is an essential key in the survival of th 17 May 2020, 08:41
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Bunuel
Federal government financing is an essential key in the survival of the interstate rail system.


A. an essential key in

B. an essential key for

C. essential for

D. essential in

E. essential
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A. an essential key in

B. an essential key for

C. essential for

D. essential in

E. essential

IMO C
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Federal government financing is an essential key in the survival of th 17 May 2020, 12:54
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Federal government financing is an essential key in the survival of the interstate rail system.


Quote:
A. an essential key in

B. an essential key for
Show more
key and essential mean same. A & B out on the basis of redundancy.

Quote:
E. essential
Show more
Replacement of this phrase in place of the underlined word makes the sentence nonsensical. E is out.

Quote:
C. essential for

D. essential in
Show more
Between D & E
Essential for is correct idiom usage. Thus D is out too
Hence C is the winner
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Federal government financing is an essential key in the survival of th 17 May 2020, 13:58
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"essential for" is the correct idiomatic usage.

Answer: C
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Federal government financing is an essential key in the survival of th 18 May 2020, 06:36
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Federal government financing is an essential key in the survival of the interstate rail system.

The correct idiomatic structure for essential is 'essential....for...'

A. an essential key in

(A) uses the wrong idiomatic structure. Hence, (A) is incorrect.

B. an essential key for

I was confused between B and C. I picked C based on intuition, without truly understanding why B is wrong. After going through a similar comment, I realized that there's a redundancy error in (B).

essential itself means 'key'. So, there's no need to restate 'key' as is done in this option. Hence, eliminate (B)

C. essential for

Uses the right idiomatic structure. Hence, (C) is the correct answer.

D. essential in

Wrong idiomatic structure in (D). Hence, eliminate (D).


E. essential

if you plug back E in the underlined portion, the sentence you get will be:

Federal government financing is essential the survival of the interstate rail system.

By reading this sentence alone, you might get a sense of something that's missing here. Additionally, it does not have the right idiomatic structure. Hence, Eliminate (E)
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Federal government financing is an essential key in the survival of th 12 May 2023, 15:38
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