What does paragraph 3 mainly discuss?A.Different effects of caffeinated coffee and decaf o
What does paragraph 3 mainly discuss?
A.Different effects of caffeinated coffee and decaf 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 decal.
D.The proof that the subjects took half an hour to fall asleep.