While Caring for a Patient with Aortic Stenosis,the Nurse Identifies

While caring for a patient with aortic stenosis,the nurse identifies a nursing diagnosis of acute pain related to decreased coronary blood flow. An appropriate nursing intervention for this patient would be to

A) promote rest to decrease myocardial oxygen demand.
B) teach the patient about the need for anticoagulant therapy.
C) teach the patient to use sublingual nitroglycerin for chest pain.
D) raise the head of the bed 60 degrees to decrease venous return.