An mi that has affected the full thickness of the heart and can cause a left ventricular aneurysm is called a(an):

There are two kinds of myocardial infarction(MI), transmural Mi and nontransmural MI. Non-transmural MI only affect a small portion of the myocardium. Transmural MI affect full thickness of the heart. Since it involves a bigger area transmural MI more likely to cause complication like left ventricular aneurysm 

The correct answer is a. we know this because n (hap) + n (hap) = 2n (dip).