Dear Friends,
Here is a detailed explanation to this question-
Bunuel
Many stock traders in the United States have set out to become global investors, convinced that limiting their investments to the U.S. stock market,
even though it is certainly home to the stocks of some of the world’s great corporations, restricted their gains.
(A) even though it is certainly
(B) which, while it is certainly
(C) despite that that market is certainly
(D) which, though certainly
(E) although, certainly as
Choice A: This answer choice maintains proper construction to convey the intended meaning of the sentence and is quite concise. Thus, this answer choice is correct.
Choice B: This answer choice incorrectly modifies the noun "U.S. stock market" with the phrase "which...restricted their gains"; it was not the U.S stock market that supposedly restricted the stock traders' gains, rather it was the action of "limiting their investments to the U.S. stock market" that did so. Thus, this answer choice is incorrect.
Choice C: This answer choice is technically correct. However, the use of the phrase "that market" to refer to "the U.S stock market" leads to the highly awkward construction "despite that that market". Thus, this answer choice is not a very good one.
Choice D: This answer choice repeats the error found in Option B. Thus, this answer choice is incorrect.
Choice E: This answer choice places information vital to the sentence between two commas; if the phrase "certainly as home to the stocks of some of the world’s great corporations" is removed from this sentence, the inclusion of the conjunction "although" no longer makes sense as there is no longer any information for it to draw a contrast against.
Hence, A is the best answer choice.To understand the concept of "Extra Information Between two Commas on GMAT", you may want to watch the following video (~1 minute):
To understand the concept of "Use of Which, Who, Whose, and Where on GMAT" you may want to watch the following video (~1 minute):
To understand the concept of "Although, Though, Despite, and While on GMAT", you may want to watch the following video (~1 minute):
All the best!
Experts' Global Team