Even Though She Got All Three Extra Credit Questions Right

Even though she got all three extra credit questions right on the exam and, as such, earned three bonus points, Shatrice is still very irritated that she lost three points for making a silly mistake on an essay question. The fact that the loss and gain did not create an emotional "balance" for Shatrice is explained by the concept of

A) the gambler's fallacy.
B) expected value.
C) utility.
D) loss aversion.