Remis was upset about the bad grade he got in his first psychology exam. Because he had another test to take that day and did not want his unhappiness to affect that test, Remis thought about all the good grades he had received before in order to make himself feel positive. This example illustrates:

Emotion regulation

Explanation:

 The emotional regulation is the term which is used to explain about the ability of an individual person as it effectively handle and manage their emotional regulation based on the given situation.

The importance of the emotional regulation is that it helps in dealing with the various types of emotional situations and how e respond on the different ongoing requirements.

According to the given scenario, the given example is best illustrating about the emotional regulation concept as Remis was very upset with his psychology exam and he do not want that they get affected as he had other test on the same day.

 Therefore, Emotional regulation is the correct answer.