The invention of the steam engine marked the onset _________ the Industrial Revolution, fundamentally changing manufacturing processes.
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writingWhich choice completes the text so that it conforms to the conventions of Standard English?
A
of
B
to
C
at
D
in
Correct Answer: A
Choice A is the best answer. The noun "onset" (meaning the beginning) is conventionally followed by the preposition "of."
Choice B is incorrect because "onset to" is not standard usage. Choice C is incorrect because "onset at" is not standard usage. Choice D is incorrect because "onset in" is not standard usage.