The physics student received weeks of specialized tutoring after failing the first exam, _________ her confusion regarding quantum mechanics was never fully resolved and she eventually changed majors.

4
writing

Which choice completes the text so that it conforms to the conventions of Standard English?

A

but

B

so

C

or

D

DELETE the underlined portion.

Correct Answer: A

Choice A is the best answer. The coordinating conjunction "but" signals a contrast between the tutoring received and the unresolved confusion.

Choice B is incorrect because "so" implies a cause-and-effect relationship. Choice C is incorrect because "or" suggests a choice between alternatives. Choice D is incorrect because removing the conjunction creates a comma splice.

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Set 46: Subordination and Coordination 1