When Assessing a Patient's Sleep-Wake Pattern, the Nurse Keeps in Mind

When assessing a patient's sleep-wake pattern, the nurse keeps in mind circadian body patterns. Which assessment data would indicate that the client follows normal circadian sleep-wake patterns?

A) Highest level of alertness at 4 p.m. (1600 hours)
B) Best coordination at 2:30 p.m. (1430 hours)
C) Fastest reaction time at 10:00 a.m. (1000 hours)
D) Greatest muscle strength at 12 noon (1200 hours)