The correct answer is A.<span>could not be heard above the voices in the hallway
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B is a subject, C is an adverbial of reason, while D is an adverbial of manner.
Answer: Support the claim
Explanation:
Whale sharks eat plankton<span> copepods, krill, </span>fish eggs<span>, Christmas Island red crab larvae and small nektonic life, like small squid or </span>fish<span>.</span>