As the submarine descended into the Mariana Trench, the vessel was soon plunged _________ total darkness.
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writingWhich choice completes the text so that it conforms to the conventions of Standard English?
A
at
B
into
C
on
D
for
Correct Answer: B
Choice B is the best answer. The verb "plunge" typically pairs with the preposition "into" when describing entering a medium or state (like darkness or water).
Choice A is incorrect because "plunged at" implies a direction of attack, not immersion. Choice C is incorrect because "plunged on" implies continuation, not immersion. Choice D is incorrect because "plunged for" implies diving to retrieve something.