Which Statement by a Patient Who Has Had an Above-The-Knee

Which statement by a patient who has had an above-the-knee amputation indicates the nurse's discharge teaching has been effective?

A) "I should elevate my residual limb on a pillow 2 or 3 times a day."
B) "I should lie flat on my abdomen for 30 minutes 3 or 4 times a day."
C) "I should change the limb sock when it becomes soiled or each week."
D) "I should use lotion on the stump to prevent skin drying and cracking."