The Nurse Is Teaching a Class on Preventing Osteoporosis to a Group

The nurse is teaching a class on preventing osteoporosis to a group of perimenopausal women.Which of these actions is the best way to prevent or delay bone loss in this group?

A) Taking calcium and vitamin D supplements
B) Taking medications to prevent osteoporosis
C) Performing physical activity, such as fast walking
D) Assessing bone density annually