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". 

Ex Input:
A large group of people are seen moving around on exercise bikes. the group <sep> (A) kicks around one another while others watch on the side. (B) move together while the camera pans around. (C) moves around the road and jumps on and off the exercise bikes. (D) rides around, bumping into one another.

Ex Output:
B


Ex Input:
The gymnasts jumps up and mounts the platform. The gymnast swings his legs and body using hand grips on a platform. the gymnast <sep> (A) stands and mounts the bars for an extended period of time. (B) tops get off the balance beam and jumps to the ground and the other gymnasts follows suit. (C) does a hand stand then dismounts from the platform. (D) does a jump rope routine.

Ex Output:
C


Ex Input:
[header] How to add rss buttons to your website [title] Find an rss button generator. [step] This article explains how to use the one at [title] Select the buttons you'd like to add to your website. [step] The most popular news aggregators' buttons are closer to the top of the list. <sep> (A) You'll probably want to add these, but make sure not to add too many, as this will take up too much space. [title] Choose a type : [step] Default, dropdown menu, or blog specific. (B) [substeps] Notice that the buttons are pretty big, which will not make them easy to add. As itunes recognizes, buttons come compatible with many media platforms, so a simple button generator provides 8 buttons instead. (C) [title] Locate an rss button generator on the internet that supports you. [step] There are lots of manufacturers that have generators on their websites. (D) [substeps] When you see an option that appeals to you, select it from the recommended fields. [title] Fill out the required required fields with your rss button generator.

Ex Output:

A