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".

A close up of sneakers and polish is shown followed by a person's hands putting objects into shoes. they <sep> (A) then begin tube tubing down a hill and into a lake of water. (B) use all the cosmetics they're using to paint the shoes and polish them up in the end. (C) fill up a tin of water, pour polish inside, and then scrub the outside of the shoes. (D) then throw the shoes into a container and the person continuously shoes out.
C