The Nurse Has Identified a Nursing Diagnosis of Acute Pain

The nurse has identified a nursing diagnosis of acute pain related to inflammatory process for a patient with acute pericarditis.The priority intervention by the nurse for this problem is to

A) teach the patient to take deep, slow breaths to control the pain.
B) force fluids to 3000 mL/day to decrease fever and inflammation.
C) remind the patient to request opioid pain medication every 4 hours.
D) place the patient in Fowler's position, leaning forward on the overbed table.