Task: Instance Description Understanding (ontology: Sciences/Biology)

Which of the following definitions best describes the instance 'STI reveal'?

A. Slang for sex work or prostitution; may also be slang for a sex worker's client. Among gay men, refers to a man with whom one has commercial sex with, a gay man's casual partner, or a man a gay man has sex with generally speaking.
B. Mostly historical slang for female pubic hair.
C. An event in the process of a sexual relationship in which partners recount their current and past experiences with sexually transmitted infections (STIs).
D. A state of mind experienced at the beginning of sexual and romantic relationships, typically involving heightened emotional and sexual feelings and excitement. NRE begins with the earliest attractions, may grow into full force when mutuality is established, and can fade over months or years. The term indicates contrast to those feelings aroused in an "old" or ongoing relationship.

Answer: An event in the process of a sexual relationship in which partners recount their current and past experiences with sexually transmitted infections (STIs).