Select the antonym of
pervert

Let's look at the meanings of the given words:
pervert: a person whose behavior deviates from what is considered right, proper, or moral.

virtuous: having or showing high moral standards; morally good. (Opposite in meaning)

libertine: a person, especially a man, who behaves without moral principles or a sense of responsibility (Synonym).

deviant: departing from usual or accepted standards, especially in social or sexual behavior (Synonym).

debauchee: a person given to excessive indulgence in sex, alcohol, or drugs (Synonym).

Therefore, virtuous is the perfect antonym.