Sexual activity with a corpse is known as

A) frotteurism.
B) coprophilia.
C) voyeurism.
D) necrophilia.

Necrophilia

is a sexual attraction to corpses, considered a paraphilic disorder by psychiatric standards.

Sexual Activity

Behaviors that include or are aimed at deriving sexual pleasure, including intercourse and other acts.

Corpse

A dead body, especially a human body to be disposed of following death.