Correct Answer: Aggravate

Solution : The right option is the third option .

Pacify means to calm or soothe, while aggravate means to worsen or intensify a situation, making it the antonym in this context.

The meanings of other words are:

• Placate: This means to make someone less angry or hostile by making concessions or soothing gestures; to appease or calm.
• Assuage: This means to ease or alleviate a problem, discomfort, or pain; to make something less intense or severe.
• Quell : This means to suppress, pacify, or put an end to something, especially by using force or authority