Final answer:
The concept illustrated in this situation is learned helplessness. Therefore, the correct option is a. learned helplessness.
Step-by-step explanation:
The concept illustrated in this situation is learned helplessness. Learned helplessness is the belief that one is powerless to change their circumstances, often resulting from a history of negative experiences where escape or control is not possible. The fox in the maze eventually gave up trying to escape the shocks because it learned that it had no control over the situation.