A Client Returns from Surgery with a PRN Order for Pain

A client returns from surgery with a PRN order for pain medication.The nurse recognizes the client will be experiencing pain for at least the first day or two after surgery and should take which of these actions?

A) Administer the PRN medication around the clock (ATC) within the time constraints of the order.
B) Administer the medication whenever the client asks for it.
C) Administer the PRN medication within the time constraints of the order during the day,and at night if pain awakens the client.
D) Ask the client if pain medication is desired,when making regular postoperative assessments.