Which of the following words are antonyms?

Remedy, recompense

Drama, plague

Clamorous, contemplative

Knavery, slander

The answer is clamorous and contemplative. They are the closest to opposites of the choices.

A remedy is a cure and recompense is the act of paying back something, so definitely not opposites.

Drama is not the opposite of a plage/disease.

Knavey is basically just being mischievous and slander is sort of an underhanded trick, so again, not opposites.