You got protagonist and antagonist mixed up. The antagonist is a person, group of people, or a force that opposes or dislikes the main character. The protagonist is the leading character in the story and is usually good. So the antagonist would be the bad guy and the protagonist would be the hero of a story.
I believe it's B! Participle phrases typically take the sentence and add some sort of modifier. An example of this that I've found is "Removing his pants, Ron jumped into the water to save the child." Another one is "The art museum, destroyed by a hurricane, was never rebuilt." The modifier can be removed from the sentence and it would still make sense.
Answer:
helping verb
Explanation:
to link simply means to join or combine two things together to form something sensible or useful so the linking verb helps the sentence become a meaningful sentence
(thanks,sorry and hope I was helpful)