[Solved] The AAIDD no longer categorizes individuals with cognitive impairment by levels of delay but rather by A)age groups. B)social class. C)levels of needed environmental supports. D)levels of brain dysfunction. Heterosexual Relationships: Amorous or intimate interactions between people of different genders. Cohabitation: Refers to when two people live together in an intimate relationship without being married. Sex Outside: Engaging in sexual activities in outdoor or public settings. Erotic Bond: A deep emotional connection between individuals that includes a sexual aspect, enhancing intimacy.