An Older Woman Has Severe Ischemic Heart Disease,hypertension,and Low Cardiac

An older woman has severe ischemic heart disease,hypertension,and low cardiac output.Which medication does the nurse administer to counteract the neurohormonal activation of this patient's cardiovascular status?

A) Loop diuretic
B) Nitroglycerin
C) Cardiac glycoside
D) Beta-adrenergic blocker