Multiple Choice
How does alertness vary when people go without sleep for several days?
A) It decreases steadily with each passing hour.
B) In general it decreases, but it is better each morning than the night before.
C) It decreases for about 24 hours and then remains constant.
D) It decreases for about 90 minutes, then increases for 90 minutes, and so forth.
Correct Answer:
Verified
Correct Answer:
Verified
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