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 demonstrates how to walk across and navigate a slackline in a grass courtyard in front of apartments. the man <sep> (A) demonstrates how to traverse a low brick fence on a residential street. (B) walks slowly across the slackline while talking and stopping to talk to passerbys. (C) stands on a slackline balancing himself with his arms before the clip cuts to him interviewing. (D) poles backward, glasses on and he begins to walk while holding the slackline while walking across the courtyard.

Ex Output:
C


Ex Input:
A large man is doing behind the neck shoulder presses. He is holding his breath doing them and then he stands up and starts to walk. he <sep> (A) is doing the arm push again and then runs and does it again. (B) takes a huge leap and comes back into the ring back into the circle. (C) gets back on the bench and does a few more pf the shoulder presses again. (D) stops after completing the lunges and sets his gear down.

Ex Output:
C


Ex Input:
A man is talking from behind a bar. He pours ice into a glass, then adds several kinds of liquor. he <sep> (A) pours it into a glass, then adds a drink mug. (B) then adds some and puts garnishes along the edge. (C) adds colored liquids, and mixes the drink. (D) pours two shots in the glass and adds a shot glass.

Ex Output:

C