In women, excessive exercise and low energy (calorie) intake can cause which of the following? a. unhealthy reduction in body fat levels b. amenorrhea (absent menstruation) c. bone density loss and...

In women, excessive exercise and low energy (calorie) intake can cause which of the following?

a. unhealthy reduction in body fat levels

b. amenorrhea (absent menstruation)

c. bone density loss and osteoporosis

d. muscle wasting and fatigue

e. all of these