Answer:
A. motivation
Explanation:
Motivation: In psychology, the term motivation is referred to as the process which is responsible for guiding, maintaining, and initiating goal-oriented behaviors. Motivation is responsible for causing an individual to act in certain ways, for example, taking a glass of water if he or she feels thirsty.
In other words, motivation is defined as a phenomenon through which a particular activity is being directed, started, and sustained to meet specific goals whether physical or psychological.
In the question above, the force that guides Jenna to engage in such behavior is called motivation.