Answer:
a. Satisfying his need for arousal
Step-by-step explanation:
Arousal: In psychology, the term "arousal" is described as a state in which an individual is physiologically attentive, alert, and awake and is primarily controlled or regulated by "reticular activating system" of his or her brain. Needs for arousal is often referred to as an individual's need for utilizing a motivational technique in order to achieve or gain something.
In the question above, Raymond’s behavior in class can probably best be explained as satisfying his need for arousal.