An infinitive usually consists of the words "to" plus a verb in its simplest form. Which makes "to finish" seem like the most logical choice.
I hope this is correct and helps you :) good luck!
Macbeth knows that Birnam Wood is approaching and his end is near
<span>B.To appeal to the reader's emotions
Fear is an important emotion that authors appeal to in order to convince an audience to agree with them. This is called "pathos". Dangerous, Suicidal, and Uncontrolled are words that evoke fear in a reader. </span>
Comforted, ameliorated, Rested