The correct option is C Cardiomegaly Angina pectoris - It is the sensation of chest pain as a result of myocardial ischemia, caused by an imbalance between myocardial blood supply and oxygen demand. It is a common symptom among patients with coronary artery disease (CAD). Myocardial infarction - commonly known as a heart attack, occurs when blood stops flowing properly to a part of the heart, and the heart muscle is injured because it is not receiving enough oxygen. Usually, this is because one of the coronary arteries that supplies blood to the heart develops a blockage due to an unstable buildup of white blood cells, cholesterol and fat. Cardiomegaly - is a medical condition, which refers to the enlargement of heart.