Synonym of TROTH

Answer: Option B

Ego : a person's sense of self-esteem or self-importance.
Faithful : remaining loyal and steadfast.
Colourist : an artist or designer who uses colour in a special or skilful way.
Disloyal : failing to be loyal to a person, country, or organization to which one has obligations.
Troth : faith or loyalty when pledged in a solemn agreement or undertaking.

Synonym of Troth is Faithful