Roberto is a 78-year-old male who has recently been diagnosed with Class III Congestive Heart Failure (CHF). His physician told him that his left ventricle has become stiff and cannot relax. Although there is no current treatment that can “fix” Roberto’s condition, he is prescribed two medications: an ACE inhibitor and beta blockers.   Which of the following conditions may have led to Roberto’s CHF?   Faulty heart valves   Hypertension   Myocarditis   Prior heart attacks   All of these choices are correct

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