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 man is standing inside a garage. He starts playing a saxophone. he <sep> (A) leans back and forth as he continues to play. (B) joins a man inside the garage. (C) sucks on the end of the saxophone as he continues to play. (D) leads a cat and a dog along as he plays.

Ex Output:
A


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:
[header] How to unlock layers in photoshop [title] Open up your image in photoshop like normal. [step] There is no sort of change or setting you can switch before opening an image that unlocks the background layer. Just open up the image like normal. <sep> (A) [title] Click on the locked layer in the " layers " palette. [step] This is the long box on the right of your screen labeled layers. (B) [title] Select layer alpha and then resize the image. [step] To prevent the color from melting and taking up so much of the background layer, select the layer alpha layer separately and resize it till it matches. (C) Make sure that when you open it, it appears in its original state (i.e. dashed, down-centered, uncurved). (D) [title] Make sure the layer you created is right. [step] If it is, your selected layer should have replaced the previous layer.

Ex Output:

A