Keywords if i'm not mistaken. Length has nothing to do with the type, headings could but not as much as key words, nor does the title.
Answer: Outline your steps to take action, know what supplies or things you may need and choose one of your ideas(or more) to act upon.
Explanation:
The underlined word is a complete subject. So, the best option is A.
<span>aking one year of athletics is required.
</span>