A 33 year old male came to the hospital with complaint of occasional left sided chest pain that lasts <30mins, following exercise, which relieves upon taking rest. What is the most probable diagnosis?

The key is C. Stable angina. [ Stable angina is chest pain or discomfort that most often occurs wi activity or emotional stress and lasts for <30 minute s, relieved by rest or nitroglycerine th Symptoms of angina occur when blood supply to heart muscle is reduced. This happens when the coronary arteries are narrowed or blocked by ath . erosclerosis or by a blood clot].