A person unrestrained by the rules of morality or tradition is called a licentious person.

Answer: Option D

Freelance : self-employed and hired to work for different companies on particular assignments.
Criminal : a person who has committed a crime.
Loafer : a person who avoids work and spends their time idly.
Libertine : a person, especially a man, who freely indulges in sensual pleasures without regard to moral principles.
Licentious : promiscuous and unprincipled in sexual matters.

Synonym of Licentious is Libertine