Answer:
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Explanation:
Answer:
Circadian rhythm, or circadian clock, is an internal biological clock that regulates sleeping and feeding patterns, as well as a whole host of other biological functions in all living organisms. Organisms most active in the daytime are diurnal, humans included, whereas nocturnal organisms come alive at night.
I think A but B is a close answer
B) $15,000 I JUST TOOK THE TEST
