It is crucial that the new software is compatible _________ the existing operating systems.

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writing

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

A

to

B

for

C

at

D

with

Correct Answer: D

Choice D is the best answer. The adjective "compatible" is followed by "with."

Choice A is incorrect because "compatible to" is a common error. Choice B is incorrect because "compatible for" is not standard usage. Choice C is incorrect because "compatible at" is not standard usage.