Rannilt was euphoric after learning that she had been accepted by the medical school of her choice. After a few weeks, however, she is only mildly happy when she thinks about her admission to medical school. The fact that she is surprised by the change in her feelings can best be explained in terms of

The answer is the adaptation-level phenomenon.

Explanation:

This phenomenon takes place when a person adapts to a new situation, until the situation is perceived as normal. In the example, Rannilt has become used to studying at the medical school, so the initial feelings of surprise and excitement have likely faded.

The adaptation-level phenomenon explains that once a situation has become the norm, the person needs a different situation to feel excited.

can you explain it better