A person who forsakes religion:

Apostle
Apotheosis
Renegade
Charlatan

The correct answer is C. Renegade.

A renegade is a person who deserts or renounces a religious faith or cause.

An apostle is a person who is sent on a mission, especially one of a religious nature.

An apotheosis is the elevation of a person to divine status.

A charlatan is a person who pretends to have knowledge or abilities they do not possess, especially in order to deceive others.