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: Consider Input: [header] How to become an endocrinologist [title] Obtain a bachelor's degree in a science-related major. [step] Though you could choose any major you want, it's best to study something like physiology, biology, or social science. These majors will help you build the prerequisite skills for medical school. <sep> (A) [substeps] If you are enjoying high school, they might teach you basic tests or techniques, like how to fight ethylene gas. Foreign nationals don't get their master's degree until they finish medical school. (B) [substeps] These degree levels will take some effort on your part, so keep an eye out for whatever college you want to attend. It's not always necessary to go to medical school if you're currently planning on med school. (C) [substeps] Enroll in or look for a program at an accredited medical school. Most states require endocrinology courses at high schools and universities. (D) In addition to studying science, you should also take courses in math, english, and the humanities. These courses can help prepare you for interacting with patients and writing reports.

Output: D


Input: Consider Input: A police officer is riding a horse down the street very slowly. many bystanders <sep> (A) cheer as he gets closer. (B) are walking by, cars are passing and casually moving along. (C) are standing up nearby. (D) join in to help him, and several other cars come along.

Output: B


Input: Consider Input: A woman is on her hands and knees cutting grass with some scissors. the camera <sep> (A) pans out to give a full view of her cutting the grass. (B) then cuts to the other side of the lawn as children play in the water. (C) pans around to show the others performing sort of for the camera, including one woman standing upright in front of a bush. (D) turns back to the girl.


Output: A