option a - true
Why do persuassive essays use facts and opinions?
While stories arouse their feelings and prompt them to act, facts help to justify a purchase, gift, decision, change in behavior … whatever action is taken. When you present facts, you help the more emotional reader validate her decision. This one-two punch is a powerful persuasive writing technique.
Opinions backed up with evidence help lead the reader along the writer's pathways of thought; making the writing more convincing as a whole. This evidence can take a wide variety of forms, ranging from personal anecdotes and quotations to statistics and references to scientific studies.