A Patient with Hyperparathyroidism Asks Why Ambulation Three Times Per

A patient with hyperparathyroidism asks why ambulation three times per day is necessary because it is so difficult to do so. Which response by the nurse is best?

A) "Walking is important for preventing cardiovascular disease."
B) "Walking is good for you; I walk three times a day."
C) "Walking will keep the calcium where it belongs-in your bones."
D) "Walking is important to maintaining adequate serum calcium levels."