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Here is a detailed explanation to this question-
Abhi077
The ideals that Julie Todaro works toward in her policies is forward-thinking, spurring libraries to increase digital relevance while simultaneously she addresses any challenges to accessibility.
A. is forward-thinking, spurring libraries to increase digital relevance while simultaneously she addresses
B. is forward-thinking, spurring libraries to increase digital relevance, also simultaneously they address
C. are forward-thinking, they spur libraries to increase digital relevance and simultaneously addresses
D. are forward-thinking, spurring libraries to increase digital relevance while simultaneously addressing
E. are forward-thinking, they spur libraries to increase digital relevance, also simultaneously are addressing
Choice A: This answer choice features a subject-verb disagreement between "ideals" and "is". Moreover, this answer choice features two further errors in its use of the phrase "she addresses". The verb "addresses" does not maintain parallelism with "spurring" and the use of the pronoun "she" alters the meaning of the sentence by implying that Julie is the one addressing the challenges; the intended meaning of the sentence is that Julie's ideals address challenges to accessibility. Thus, this answer choice is incorrect.
Choice B: This answer choice repeats the subject-verb agreement and parallelism errors found in Option A. Additionally, this answer choice presents vital information between two commas; removing the phrase "spurring libraries to increase digital relevance" will lead to an incomplete sentence. Thus, this answer choice is incorrect.
Choice C: This answer choice links two complete clauses with a comma, leading to a run-on sentence. Thus, this answer choice is incorrect.
Choice D: This answer choice maintains subject-verb agreement and parallelism throughout the sentence, conveys the intended meaning of the sentence, and avoids run-on errors by presenting the additional information about Julie's ideals as a modifying clause correctly linked to the main clause through a comma. Thus, this answer choice is correct.
Choice E: This answer repeats the run-on error found in Option C. Additionally, this answer choice fails to maintain parallelism between the verbs "spur" and "addressing". Thus, this answer choice is incorrect.
Hence, D is the best answer choice.To understand the concept of "Comma Splices and Run-ons on GMAT", you may want to watch the following video (~6 minutes):
To understand the concept of "Extra Information Between two Commas on GMAT", you may want to watch the following video (~ 1 minute):
All the best!
Experts' Global Team