Which of the following are considered essential features of sexual dysfunction?

Choice A reason: The DSM-5 defines sexual dysfunctions as a heterogeneous group of disorders typically characterized by a clinically significant disturbance in a person’s ability to respond sexually or to experience sexual pleasure. This includes deficits in the arousal phase (inability to respond) and the presence of pain (genito-pelvic pain/penetration disorder), which are core functional impairments. Choice B reason: While aversion to sexual stimuli was previously categorized in older diagnostic manuals, it is no longer a primary "essential feature" as defined in the current diagnostic clusters. Painful orgasm can be a symptom, but it is not as broad or foundational a feature as the general inability to respond to stimulation or the experience of intercourse-related pain. Choice C reason: Heightened arousal is generally not classified as a sexual dysfunction; rather, dysfunctions involve a deficiency or absence of the normal sexual response cycle. While "abnormal timing" (such as premature or delayed ejaculation) is a dysfunction, the inclusion of "abnormal heightened arousal" makes this choice scientifically inaccurate for this diagnostic category. Choice D reason: Lack of sexual desire is an essential feature of certain dysfunctions (such as female sexual interest/arousal disorder), but "inability to respond" in Choice A is a more comprehensive clinical descriptor for the physiological and psychological failures across the arousal and plateau phases that define the class of disorders.