A celebrity actress experiences ever-increasing levels of professional acclaim following each successful movie role. Yet with each success, she experiences no more than a temporary surge of subjective well-being. This is best explained in terms of

A. an internal locus of control.
B. relative deprivation.
C. the do-good, feel-good phenomenon.
D. the adaptation-level phenomenon.

The adaptation-level phenomenon can be explained as the tendency that people have to adapt to new situations which leads to the act of taking things for granted.

For example, Saul makes $3500 a month. In september he gets a raise of $500. He gets really excited and happy that he is receiving $4000. The next year he no longer feels the excitement that he felt when he got the raise in september because he has adapted to the situation.

In this particular case, a celebrity actress experiences with each success, no more than a temporary surge of subjective well-being. She is so accostumed to success that to her it has becomed the norm.

This is best explained in terms of: D. The adaptation-level phenomenon.