A Postoperative Patient Asks the Nurse How the Prescribed Ibuprofen

A postoperative patient asks the nurse how the prescribed ibuprofen (Motrin) will control the incisional pain. The nurse will teach the patient that ibuprofen interferes with the pain process by decreasing the

A) modulating effect of descending nerves.
B) sensitivity of the brain to painful stimuli.
C) production of pain-sensitizing chemicals.
D) spinal cord transmission of pain impulses.