3. Which of the following statements is true?

A. Most myocardial infarctions originate from coronary plaques that do not cause significant hemodynamic stenosis

B. Coronary vasospasm is a common cause of myocardial infarction

C. Plaque characterization to distinguish vulnerable from stable coronary plaques is a commonly utilized risk-stratification tool

D. A critical hemodynamic coronary stenosis is a prerequisite of an acute coronary syndrome