In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Q: [header] How to send a letter to girls love mail [title] Know the rules. [step] Before you write your letter, you obviously must know the rules for writing it. [substeps] You must start your letter with dear friend or dear sister. <sep> (A) Though men can get breast cancer, your letter will most likely be given to a woman. If you want to be safe in case your letter is given to a man, you can always just write dear friend. (B) Tell them the rules will affect how much space will be in your letter. Be sure to keep track of your mail frequency. (C) Share your story in the first paragraph, if applicable. You should also send your letter on the last day of the first week of school. (D) You must also include the date of that letter, in case an old one doesn't arrive. There are no exceptions so you must be strict to make sure this letter doesn't get filled out incorrectly.
A:
A