Which condition is characterized as stable angina?

Stable angina is characterized by chest pain or discomfort that occurs in a predictable pattern, typically triggered by physical activity or emotional stress. It is important to note that this type of angina is relieved by rest or the use of nitroglycerin. The pain experienced during stable angina episodes is consistent in terms of intensity and duration, which sets it apart from unstable angina.

The correct choice highlights the hallmark features of stable angina: its predictability upon exertion and the ability to alleviate it through rest. Understanding this pattern is crucial for recognizing the stability of the condition, which indicates a temporary reduction in blood supply to the heart muscle but does not usually lead to permanent damage when managed appropriately.