Which of the Following Technique Modifications Would Be MOST Helpful

Which of the following technique modifications would be MOST helpful to a patient who is inhibited by surgical pain to perform an effective cough?

A) Instruct the patient in how to splint their incision by applying pressure over it with a pillow.
B) Request the nurse to provide the patient with pain medication prior to a treatment session with the physical therapist.
C) Instruct the patient on the technique of huffing.
D) All of the above.