Answer:
B. write your commentary about the quotation, explaining why you agree or disagree.
Step-by-step explanation:
When you use a direct quotation, you should do all of the things mentioned before. However, you should also write your commentary about the quotation. It is very important to explain why you agree or disagree with the quotation in order for the audience to understand why you have included it. Moreover, by providing commentary about it, you will also clarify why the quotation contributes to your argument and what it is that the audience can learn from it.