[Solved] Often times the first symptom of myocardial ischemia is: A)angina pectoris. B)orthopnea. C)claudication. D)edema. Sexual Behavior: Actions related to the expression of sexuality and sexual preferences. Sexual Behavior: Actions or practices related to the expression of sexuality, including both physical and emotional aspects. Erotic Preferences: An individual's patterns of sexual attraction and desire towards certain stimuli or sexual practices. Sexual Identity: An individual's identification and expression of their sexual orientation, preferences, and behaviors.