An athlete's arousal level refers to

a. the "mind-set" of the athlete in reference to competition and intensity of the exercise or sport.
b. how well rested the athlete is before competition.
c. the methods by which the athlete prepared him/herself for competition.
d. the type of equipment the athlete uses during competition.

The best answer is letter A. the "mind-set" of the athlete in reference to competition and intensity of the exercise or sport.

“Arousal Level” is the player's or athletes's state of readiness which refers to their physical, emotional and mental state during a match as to how calm they are, whether they are spooled up or spooled down and or how aggressive they are. 

D. Location within 15 minutes of home or work.