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How much sleep does the average person need for every 24-hour period?
A.  One to two hours
B.  Three to four hours
C.  Seven to eight hours
D.  Nine to ten hours
To be alert enough to drive safely, the average person needs between seven and eight hours of sleep for every 24-hour period.
Answer Statistics
7.2 % of our users get this question wrong.
This question's difficulty is Medium

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