Weight Loss Is Difficult for Overweight/obese Adults, in Part Because

Weight loss is difficult for overweight/obese adults, in part because they seem to have less tolerance for activity of higher intensities and they often perceive a given level of activity as requiring more effort. Work examining the relationship between affective responses and exercise intensity in overweight women has shown which of the following?

A) When allowed to self-select exercise intensity, affect remains stable.
B) When allowed to self-select exercise intensity, affect steadily declines during exercise.
C) When the exercise intensity is imposed, affect steadily improves during exercise.
D) When the exercise intensity is imposed, affect remains stable during exercise.