[Solved] These directly attack the foreign cells of an incompatible skin graft. A)antigens B)antibodies C)helper T cells D)cytotoxic T cells E)effector B cells Frotteur: is an individual who derives sexual pleasure from rubbing against non-consenting people, often in crowded public places. Pedophilia: A psychiatric disorder characterized by an adult having sexual fantasies, urges, or behaviors towards prepubescent children. Diagnosing: The process of identifying a disease or condition based on its signs and symptoms through examination and tests. Autoerotic Asphyxia: A dangerous sexual practice involving self-induced suffocation to heighten pleasure during masturbation.