[Solved] A mother's immune system may have a defensive response to substances produced by male fetuses.This is most likely to contribute to A) erotic plasticity. B) female orgasmic disorder. C) sexually transmitted infections. D) the fraternal birth-order effect. Hyper-Impulsive Behavior: A behavior pattern marked by acting on impulses without considering the consequences, often seen in various psychiatric conditions. Humanistic Approaches: Psychological perspectives emphasizing individual potential, self-awareness, and the importance of human values and personal fulfillment. Positive Change: An improvement or beneficial transformation in individuals, situations, or environments. Caregivers: Individuals who provide care to those who need assistance due to conditions like old age, sickness, disability, or vulnerability.