The role of the antagonist is to create a direct conflict with the protagonist or main character of the story. The protagonist has a set goal to achieve in the story, and the protagonist is set to make it more difficult for them. Also, antagonist don't necessarily have to be evil, they simply work against the protagonist.
It would be C because an exclamation is a strong emotion like AAAGH! DARN! OH SNAP! or something else like that. having a lot of these in your writing can be overwhelming and confusing
