7 comes to the phys:aan because of a 2.week history of Intermittent palpitations She is otherwise asymptomatic. She has no history of serious takes no are limits on cardiac examination, a mdsystoltc click is heard best at the cardiac apex; it radiates to the left and does not change on Va!saåva The remainder of the examination shows no abnormalities Which of the following is the most likely diagnosis? C A) Ant eve tnsuticjency B) Anc vaVe stenos U C) Hypertrophc obstructwe cardiomyopathy OJ 0) valve prolapse u' E) trai valve stenosts 'C F) Pugmonary stenos O G) Ventnculer septal defect