Which of following are the steps in writing persuasive claims?（ ）

A、Begin the claim letter with a compliment, and follow it with a statement of the problem or a brief review of actions you have taken to resolve the problem.Begin the claim letter with a compliment, and follow it with a statement of the problem or a brief review of actions you have taken to resolve the problem.
B、Present facts to prove your claim is valid and explain why the company is responsible for the problem.
C、Close by telling the reader exactly how you want the problem to be solved. Make the request clear.
D、Making a neutral comment related to the main idea.