Mac took a capsule at a party earlier in the evening and is now showing changes in the functions of his central nervous system that are manifesting in both behavior and physiology.He is most likely experiencing:

A) substance intoxication.
B) substance withdrawal.
C) tolerance.
D) a drive-control disorder.

The changes in behavior and physiology after taking a capsule at a party indicate substance intoxication, which is a temporary disturbance in behavior, mood, cognition, and physiology caused by the effects of a substance. Substance withdrawal, on the other hand, is the set of physiological and behavioral symptoms that occur after stopping or reducing the use of a substance that one has become physically or psychologically dependent on. Tolerance refers to the need for increased amounts of a substance to achieve the desired effects, or the reduced effects of a substance after prolonged use. Drive-control disorders involve impairments in impulse control or the ability to resist an urge or impulse.