What does Paragraph 3 mainly discuss? 查看材料A.Differe

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What does Paragraph 3 mainly discuss? 查看材料

A.Different effects of caffeinated coffee and decal on sleep.

B.Different findings of Lotan Shilo and a team about caffeine.

C.The fact that the subjects slept 415 minutes per night after drinking decaf.

D.The evidence that the subjects took half an hour to fall asleep.

请帮忙给出正确答案和分析,谢谢!

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