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 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.

Ex Output:
D


Ex Input:
People are standing in a swimming pool. they <sep> (A) are playing a game of water polo. (B) put on protective caps to ward off the cold. (C) dip a sponge into the water. (D) push themselves through a hole in the water.

Ex Output:
A


Ex Input:
The credits of the clip are shown. people <sep> (A) are putting accessories on their feet. (B) are sitting on camels. (C) are biking down a path. (D) are underwater under water looking at machines.

Ex Output:

C