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# During the twentieth century, the study of the large-scale

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Manager
Joined: 28 Mar 2009
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During the twentieth century, the study of the large-scale [#permalink]

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27 Jun 2009, 10:19
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During the twentieth century, the study of the large-scale structure of the universe evolved from the theoretical to the practical; the field of physical cosmology was made possible because of both Einstein's theory of relativity and the better ability to observe extremely distant astronomical objects.

(A) because of both Einstein's theory of relativity and

(B) by both Einstein's theory of relativity and

(C) by Einstein's theory of relativity and also

(D) because of Einstein's theory of relativity and also

(E) as a result of both Einstein's theory of relativity and

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Senior Manager
Joined: 04 Jun 2008
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27 Jun 2009, 12:30
"made possible" can only be followed by "by".

so B or C

C is wrong because "and also" should be follow by "by" again, which is not there,

so should be B

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Manager
Joined: 15 May 2009
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27 Jun 2009, 12:44
skim wrote:
During the twentieth century, the study of the large-scale structure of the universe evolved from the theoretical to the practical; the field of physical cosmology was made possible because of both Einstein's theory of relativity and the better ability to observe extremely distant astronomical objects.

(A) because of both Einstein's theory of relativity and
(B) by both Einstein's theory of relativity and
(C) by Einstein's theory of relativity and also
(D) because of Einstein's theory of relativity and also
(E) as a result of both Einstein's theory of relativity and

I think the correct idiom is "made possible BY", so that eliminates A, D, & E.
Choice C has the unnecessary word "also"; I think this choice would also mess up parallelism. If we're going to say "made possible by...", shouldn't we use "by X and BY Y"?

So we're left with (B), "by both X & Y".

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Senior Manager
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27 Jun 2009, 16:59
Yes I think B for all the above-mentioned reasons.

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Manager
Joined: 28 Mar 2009
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29 Jun 2009, 08:19
Yes, the OA is B.

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Re: Cosmology   [#permalink] 29 Jun 2009, 08:19
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