After the Nurse Completes Discharge Teaching for a Patient Who

After the nurse completes discharge teaching for a patient who has had a left modified radical mastectomy and lymph node dissection, which statement by the patient indicates that teaching has been successful?

A) "I will need to use my right arm and to rest the left one."
B) "I will avoid reaching over the stove with my left hand."
C) "I will keep my left arm in a sling until the incision is healed."
D) "I will stop the left arm exercises if moving the arm is painful."