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 feel fresh and happy, all the time [title] Choose joy. [step] We humans tend to focus on the negative instead of the positive. Our minds give more importance to the negative aspects of most situations. <sep> (A) Part of feeling fresh is fixating on the positive things that can go on. Try to focus on those things while growing into a uniquely healthy human being. (B) Positivity is simply a force of social behavior. You want to attain happiness by accomplishing one important task at a time, starting with the worst task and then deciding on how to improve it. (C) If you don't believe it, think about this: a person is complimented six times in a day and criticized once, what does this person think about the most in the following days? Yes, the negative, apparently. Most people are like this: it is a survival mechanism. (D) Create a list of the negative things you've read about, the things you're grateful for, the things you've found in your life, and the things that make you smile. [substeps] Instead of focusing on physical bad things, replace them with positive ones.
Output:
C