Definition: 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".
Input: [header] How to help prevent nuclear war [title] Show up to town hall meetings, if applicable. [step] If you have the opportunity to go to a town hall meeting in your city or town, use this as a chance to voice your concerns about the threat of nuclear war. The representatives at this meeting will be able to hear your message, as well as others attending the town hall meeting. <sep> (A) [substeps] Prepare what you're going to say before attending the meeting. Use the information you gathered in your research to support your argument. (B) [title] Discuss program issues if conditions or passions stop your ideas. [step] Discuss local issues that you are worried about and what is causing them. (C) [title] Help to make cleanup less disruptive to the surrounding environment. [step] You don't have to let the public know about the threat, of course. (D) [substeps] Make sure to introduce yourself and outline your cause. For example, say something like, " i'm a citizen of america and i want to help in the developing world.
Output:
A