The nurse has educated a patient with low back pain about techniques to relieve the back pain and prevent further complications. What statement by the patient shows understanding of the education the nurse provided?

a. "I will lie prone with my legs slightly elevated."
b. "I will bend at the waist when I am lifting objects from the floor."
c. "I will avoid prolonged sitting or walking."
d. "Instead of turning around to grasp an object, I will twist at the waist."