Correct Answer: hostile

Solution : The correct choice is the third option .

The most appropriate antonym for affable is hostile , because affable denotes pleasant or friendly, while hostile means having very strong feelings against somebody or something.

The meanings of other options are as follows:

• Aggravate: It denotes making something worse.
• Sardonic: It denotes showing that you think you are better than other people and not taking others seriously.
• Amicable: It denotes something made or done in a friendly way, without argument.