Answer:
A. Arousal
Explanation:
The arousal theory is a theory of motivation that explains that, people are motivated to engage in behaviors or actions in order to maintain a balanced level of psychological arousal, which varies from individual to individual. It explains that when the arousal level of an individual is over stimulated, overreaching or beyond optimal level, an individual would be motivated to seek activities that would help him relax and experience a soothing relief. On the other hand, when the optimal arousal level of an individual drops, the individual would be motivated to engage in activities that would help raise his arousal level.