He denied the accusation.

Answer: Option D

Accusation : a charge or claim that someone has done something illegal or wrong.
Justified : having, done for, or marked by a good or legitimate reason.
Spoke : say something in order to convey information or to express a feeling.
Publicised : make (something) widely known.
Affirmed : declare one's support for; uphold; defend.

Antonym of Accusation is Affirmed