A 69-year-old male is evaluated during a follow-up visit. He initially presented with a 3-month history of chest pressure and dyspnea that occurred primarily with exertion. Coronary angiogram is significant for normal left main and a 90% stenosis in the proximal left anterior descending artery resulting from ulcerated plaque. Which of the following is the most appropriate next step in management?
a) Percutaneous coronary intervention (PCI) with stent placement
b) Coronary artery bypass grafting (CABG) surgery
c) Medical therapy with aspirin and statin
d) Lifestyle modification and cardiac rehabilitation
