Given the task definition and input, reply with output. 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".

[header] How to be in control [title] Calm yourself in the moment. [step] If you are upset and you start losing control of your behavior, quickly take steps to master yourself. Pick a few ways to calm down and practice them when you're by yourself. <sep> (A) You'll start to feel less chaotic and less in control as you relax and take control of the situation. [substeps] You can use visualization to help you control your mood and calm down. (B) Listen to music or movies and focus on your breathing. Think about what you want to happen next and what will happen after the event. (C) Exercising, listening to soothing music, or taking a long, relaxing bath are all possible ways to calm down. [title] Plan a fun activity for the evening. (D) That way, you'll know exactly what to do in a critical moment. [substeps] Take a deep breath and slowly exhale.
D