According to the Text, Why Is It Usually a Doomed

According to the text, why is it usually a doomed idea to try to diet when you are under stress?

A) Because dieting tends to temporarily deplete cognitive resources, which are needed for successfully coping with stressors
B) Because cortisol, the hormone released during times of stress, affects metabolism in such a way that it is almost impossible to diet successfully
C) Because people's capacity for willpower is limited, and can be depleted by attending to stressors (such that little willpower is left for dieting)
D) Because people require a greater caloric intake than usual in order to successfully cope with stressors