Which Penal Code is associated with the term "oral copulation"?

The term "oral copulation" is specifically defined and addressed under Penal Code 288a in California. This section refers to the act of copulation by the mouth, outlining the legal definitions and parameters surrounding consensual as well as non-consensual acts. It encompasses both the act itself and the circumstances under which it may be considered a crime, including issues of consent and the age of the individuals involved.

This distinction is essential because California's legal framework categorizes various sexual offenses differently based on the nature of the act and the relationship between the individuals. While other Penal Codes listed address different sexual offenses or criminal behaviors, 288a is the only one that directly pertains to oral copulation, thus making it the correct answer in this context.