You will be given a definition of a task first, then some input of the task.
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 quit smoking [title] Think about if you want to quit smoking. [step] Nicotine is incredibly addictive and it will take determination to quit. Ask yourself if a life without smoking is more appealing than continuing your life as a smoker. <sep> (A) If the answer is yes, have a clear reason for wanting to quit. This way, when abstaining becomes difficult you can be clear about your very important reason to quit. (B) If you say no, you may regret it. If you are craving the cigarette, quitting would be a huge commitment. (C) [substeps] If you already smoke a lot of cigarettes, and continue to smoke, the nicotine will kick in. Quitting smoking will help your body as well as your mind. (D) If you want a no-smoking lifestyle, you might be tempted to quit entirely. It might not be worth it to quit if you prefer not to smoke.
Output:
A