The answer should be B that’s what I just got
The most essential part of a persuasive essay is to convince the reader of whatever topic u are discussing. If you are talking about the literal part of the essay, the most important part is the evidence and the claim
A dialogue is a conversation between people and a monologue is when a person, usually a character in a play, etc is talking to themselves ie. they are musing, telling the audience their feelings and thoughts, etc :)