A 41-year-old male client has a five year history of hypertension. He is admitted to the hospital with complaints of exertional dyspnea requiring three pillows for sleep and episodes of breathlessness that nightly wakes him up. His blood pressure on admission was 180/106 pulse rate 104, respiratory rate 30. He has JVD to the angle of his jaw and one plus lower extremity edema bilaterally. A transthoracic echocardiogram was performed and reveals normal systolic function but the trans mitral Doppler flow pattern demonstrates grade 2 diastolic dysfunction with increased septal and posterior wall dimensions. Which diagnosis is the most likely etiology for the clients condition? A. Hypertensive cardiovascular disease B. Aortic dissection C. Renal artery stenosis D. CAD