The correct option is A condemning
Condoning means accept (behaviour that is considered morally wrong or offensive). The opposite of condoning is condemning, or express complete disapproval of; censure. Hence, Option B is correct. Among the rest of the options, disparaging means expressing the opinion that something is of little worth, disliking means feel distaste for or hostility towards, forbidding means unfriendly or threatening in appearance. These options do not express this antonym, hence incorrect.