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". 

Example Input: A boy with dark hair and no shirt is mowing a dirt patch with small patches of grass using a large, orange, push lawn mower. as the boy <sep> (A) continues, he starts to try and mow the grass with the yellow, wind powered, when he is done, he tosses the mower and walks onto the right side of the yard to break the grass apart. (B) finishes his task, he takes the mower off of the camera frame but instead of disappearing behind the screen, he appears to be zooming in on the grass on the left. (C) mows, he pauses and flashes to the camera and two ends are shown before suddenly zipping back to the beginning. (D) mows the dirt patch, large amounts of dirt come up from the ground in a smog like blizzard.
Example Output: D

Example Input: [header] How to be a roller hockey goalie [title] Obtain all the right equipment-all the pads, the helmet, and everything else. [step] Don't try to play without it! [title] Stretch out thoroughly. [step] You should have some type of routine or comfort zone to get into the right mindset. <sep> (A) [title] Have your body on ice and ready to catch the puck (s) any pop off. [title] Lift your arms, but not too quickly. (B) If you just sat quietly for an hour waiting for the ice to harden (or something like it), you will feel tired soon after your session. Still, warming up and stretching will help your body acclimate to the cold one year ago, and you will gain muscle. (C) You'll probably find you need to stretch out much more than any of the other players. Join in the player stretch-out then move onto doing some personal stretches. (D) [title] Use a ice hockey rink and keep the doors open. [step] The best part about ice hockey is that you can roll around and skate along ice in any ice rink.
Example Output: C

Example Input: [header] How to enjoy exercise [title] Identify and choose exercises you'll enjoy. [step] Some people imagine a gym when they think of exercise, or perhaps jogging around the park. If you enjoy those things, then go for it. <sep> (A) Exercise is a way to clear your mind and give you the energy to exercise. [substeps] At least try to identify with the exercise that you want to do and put effort into it. (B) If not, then find something that you will enjoy. The easiest way to make exercise fun is by sticking with workout routines that you know you'll enjoy. (C) You'll have a better time if you're going to exercise in the indoor gym. [substeps] If you can't imagine yourself doing a perfect set, choose something you're truly passionate about. (D) [substeps] Start by reviewing the events and factors in your day that guided you to exercise. Maybe, for example, you had a picnic in the park, maybe you initiated a mini yoga class with a friend.
Example Output:
B