Instructions: 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 become a historian [title] Develop your reading and writing skills in high school. [step] Select additional history or english courses as your electives. Take as many advanced placement (ap) courses as you can. <sep> (A) If you've already earned a degree in high school in a subject, it might be helpful to take courses in other subjects as well. If you don't have a solid foundation in high school, look for independent courses at your local library. (B) These will help to prepare you for college-level essay writing. Join clubs that emphasize critical thinking and the use of evidence, such as mock trial. (C) It is recommended that you pre-register for these before high school. If you do not already have free time in your schedule, take two to three. (D) If possible, pick classes with a history section. To develop your reading and writing skills as you go, consider taking a course that is held in a public school.
Output:
B