Self-Efficacy Has Been Found to Be Related to the Positive

Self-efficacy has been found to be related to the positive effect derived from exercise in that

A) subjects with low self-efficacy beliefs reported more positive mood.
B) positive effect may help maintain the practice of exercise.
C) subjects with high self-efficacy are less likely to exercise.
D) subjects with low self-efficacy beliefs are more likely to exercise.
E) positive effect has not been found to predict subsequent self-efficacy beliefs.