I believe its B just cause its the character speaking and the narrator explaining what the character is doing should be spoken in a lower voice. hope it helps i tried :-:
He worries<span> that Banquo </span>will<span> be suspicious of Duncan's murder so he decides to kill Banquo and his son Fleance in order to ensure that none of Banquo's people take the throne after him. He doesn't want people to know that hes guilty of killing the king.</span>
Answer:
B. Ethos
Explanation: Ethos is the mode of persuasion that uses the character or appeal of the speaker to persuade an audience. Pathos uses emotion. Logos uses logic or reasoning. Ad speak is using a specific language to describe something.