Marcus repeatedly gives his administrative assistant, Shana, small pay raises for her hard work. Lately however, Marcus neglects to acknowledge Shana's accomplishments, and Shana's performance has begun to decline. Shana's behavior is changing because of .

The correct answer is extinction

Explanation: Extinction, in Psychology, refers to the gradual weakening of a conditioned response that results in the decrease or disappearance of behavior. In other words, the conditioned behavior eventually stops.

In classical conditioning, extinction occurs when a conditioned stimulus is no longer paired with an unconditioned stimulus.

In operant conditioning, extinction can occur if the behavior is not reinforced, or if the type of reinforcement used is no longer rewarding.

paul revere would be your answer : )

classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.