[Solved] What is the trigger for angina pectoris? A)Atherosclerotic lesions B)Hyperlipidemia C)Myocardial necrosis D)Myocardial ischemia Behavior: The actions or reactions of an object or organism, often in response to the environment. Psychology: The scientific study of the mind and behavior, examining how individuals think, feel, and act through both experimental and observational studies. Humanistic Psychology: A perspective in psychology that emphasizes individual potential for growth and the concept of free will. Personal Growth: The process of achieving personal improvement, development, or growth, whether intellectually, emotionally, or spiritually.