Final answer:
Transvestism (D) is considered a noncoercive paraphilia because it involves wearing clothes of the opposite sex for personal reasons and does not inherently involve nonconsenting other parties, unlike other options listed which can be coercive.
Step-by-step explanation:
The term typically considered a noncoercive paraphilia from the options provided is transvestism (D). Transvestism refers to the practice of wearing clothes commonly worn by the opposite sex, often for personal comfort or self-expression, rather than for sexual arousal or activity necessarily involving other nonconsenting individuals. Unlike frotteurism, voyeurism, and exhibitionism, which involve nonconsenting other parties and can be considered coercive, transvestism does not inherently involve unwilling participants or the risk of harm to others.
Transvestism is often correlated with gender expression, though it is a separate concept from gender identity disorders such as gender dysphoria, sexuality such as homosexuality or bisexuality. It is unrelated to the reduced volumes of particular brain areas that are seen in individuals with posttraumatic stress disorder (PTSD), which can be an outcome of distressing experiences and is not connected with paraphilias or gender expression.