Final answer:
Motivation is the arousal of enthusiasm and persistence to pursue a certain course of action. It is a fundamental concept in psychology that drives behavior and influences the direction, intensity, and persistence of our actions.
Step-by-step explanation:
The arousal of enthusiasm and persistence to pursue a certain course of action refers to motivation. Motivation is a fundamental concept in psychology that drives behavior and influences the direction, intensity, and persistence of our actions. When we are motivated, we are more likely to put in the effort and work towards achieving our goals. For example, if a student is motivated to excel in their exams, they will feel enthusiastic and determined to study and prepare for them.