It is surprising to find her condoning such an act.

Answer: Option B

Condoning : accept (behaviour that is considered morally wrong or offensive).
Disparaging : expressing the opinion that something is of little worth; derogatory.
Condemning : express complete disapproval of; censure.
Disliking : feel distaste for or hostility towards.
Forbidding : unfriendly or threatening in appearance.

Antonym of Condoning is Condemning