Detailed Instructions: 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 be a responsible instagram user [title] Read the terms and conditions thoroughly. [step] Instagram provides documents for their term of use and a user agreement. These documents protect the rights of the makers of instagram and users alike, and at the same time discourage improper use, spam, negative, or inappropriate content such as nudity. <sep> (A) [title] If you do not yet have instagram, sign up with an account and appropriate username. [step] Generally simple, easy to follow names are acceptable and will help you gain followers. (B) These documents are available for download online, with customers help will a kindle, and need to be updated regularly. [title] Don't sign up for your kindle account. (C) Review this document frequently, and thoroughly read it before accepting additional users who may harass you with profanity or bad language. You also may wish to see the agreement on a forum before accepting users who say the terms and conditions of the agreement. (D) This ensures the users that you're knowledgeable and understand that they are entitled to their rights, and that you both agree to the rules and procedures that are at being exercised. Use what you know about the rights of each user and follow the agreements in your agreement.
A:
A