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:
People are seen walking around a neighborhood with some walking dogs. A young girl walks a dog around the area. another man <sep> (A) walks on a leash behind the dogs. (B) walks in and out of frame while juggling balls. (C) follows her from behind. (D) walks a horse and leads into credits showing horse grooming tools.

Ex Output:
C


Ex Input:
A man wearing grey shorts kneels down on a carpeted floor and begins stretching. The man moves his right leg under his hip and in front of his left knee. the man <sep> (A) continues exercising his left leg. (B) is then sitting while he's exercising and putting a harness. (C) then begins looking comfortable about doing this and stretches. (D) begins to rock back and forth in a slow movement as he stretches.

Ex Output:
D


Ex Input:
[header] How to buy bonds on e trade [title] Log on at www.us.etrade.com. [step] If you do not already have an account, you will need to set one up. The instructions are easy to follow. <sep> (A) Simply click on the green box that says open an account. [title] View the portfolio of bonds available for purchase. (B) [title] Go to the payment processing machine website. [step] Click the " i agree to installment " link on the right. (C) Read through each paragraph and follow all the details. [title] Get money for bond purchase early, ideally in one month. (D) [title] Go to the e trade marketplace websites. [step] To redeem an account, click your profile at the top of the website.

Ex Output:

A