Dear Friends,
Here is a detailed explanation to this question-
CAMANISHPARMAR
The advice given to test takers that they should not study the day before a test is particularly relevant for standardized tests in which memorization plays a small role, because test takers who jam their heads full of information are often worse off
compared to that of test takers who relax on the previous day.
A) compared to that of
B) compared to those
C) than
D) than those
E) as
Concepts tested here: Pronouns + Comparisons + Idioms + Awkwardness/Redundancy• A comparison must always be made between similar elements.
• "compared/comparison with" is used for comparing similar things and "compared/comparison to" is used for comparing different things.
• A term such as "worse" must have a logical sequence with "than"; "worse...than" is the correct, idiomatic construction.
A: This answer choice suffers from pronoun ambiguity, as the pronoun "that" has no clear referent. Further, Option A incorrectly compares "test takers who jam their heads full of information" to "that of test takers who relax" rather than to the "test takers", themselves; please remember, a comparison must always be made between similar elements. Additionally, Option A uses the needlessly wordy phrase "compared to that of", leading to awkwardness and redundancy.
B: This answer choice incorrectly uses "compared to" to compare "test takers who jam their heads full of information" and "test takers who relax"; please remember, "compared/comparison with" is used for comparing similar things and "compared/comparison to" is used for comparing different things. Additionally, Option B uses the needlessly wordy phrase "compared to those", leading to awkwardness and redundancy.
C: Correct. This answer choice avoids the pronoun error seen in Option A, as it employs no pronouns. Further, Option C correctly compares "test takers who jam their heads full of information" with "test takers who relax". Moreover, Option C avoids the idiomatic errors seen in Options B and E, as it uses the correct, idiomatic construction "worse...than" rather than the "compared...to" or "compared...with" construction. Additionally, Option C is free of any awkwardness or redundancy.
D: This answer choice uses the redundant phrase "than those", rendering it awkward and needlessly wordy; this phrase is redundant, as "those" can be deleted without a loss of clarity.
E: This answer choice incorrectly uses the unidiomatic construction "worse...as" rather than the idiomatic construction "worse...than"; please remember, a term such as "worse" must have a logical sequence with "than"; "worse...than" is the correct, idiomatic construction.
Hence, C is the best answer choice.To understand the concept of "Compared With" versus "Compared To" on GMAT, you may want to watch the following video (~1 minute):
All the best!
Experts' Global Team