How do paragraph 6-7 provide relevant evidence for the authors claim that effect of sleep deprivation on people are challenging to predict? A. They compare healthy research subjects with Those who have chronic sleeplessness

B. The contrast the ease with which some sleep deprive people function to struggle faced by others

C. They controls the functions of people with high measured dopamine levels to those of people with low measured dopamine levels

D. They compare highly successful people who sleep eight hours a night less successful people who stay awake and watch television