The moon's gravity exerts a pull on the Earth's oceans, _________ causing the daily cycle of high and low tides.

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writing

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

A

but

B

so

C

for

D

nor

Correct Answer: B

Choice B is the best answer. "So" connects the cause (gravity) with the result (tides).

Choice A is incorrect because "but" implies contrast. Choice C is incorrect because "for" implies cause. Choice D is incorrect because "nor" implies a negative addition.