ziyuen wrote:
There is little doubt that the ongoing cycle of eviction and relocation of immigrant families poses a significant obstacle to education and the tool that is most likely to enable those families to break that cycle.
A. poses a significant obstacle to education and the tool that is
B. pose significant obstacles to education, the tool that is
C. pose a significant obstacle to education, the tool
D. poses a significant obstacle to education, the tool
E. pose significant obstacles to education and to the tool that is
OFFICIAL SOLUTION
From your initial scan of the problem, this one should scream "Subject-Verb Agreement" at you with the first decision point being "pose" vs. "poses." What is the subject of that verb? It's "cycle" ("of eviction and relocation of immigrant families" just tells you more about the cycle). That means that you need the singular verb "poses," and that limits you to A vs. D.
Between A and D, choice D uses the modifier "the tool" to describe "education" - a logical modifier and clear meaning to the sentence. In chioce A, "and the tool" is at best ambiguous (does "and" connect "obstacle" and "tool" as two things that the cycle poses? Or "education" and "the tool" as two separate things that are facing obstacles?) and at worst illogical (the logical meaning is that education is the tool, not that education and this vague "tool that is most likely..." are two separate things). Therefore, answer choice D is correct.
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