Definition: 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".
Input: She begins mixing a drink together in a glass and covers it with a metal cover. She demonstrates how the glass is to be secured and begins to mix the contents properly. after she <sep> (A) boils some water in the glass, she pours in some water and stirs it up. (B) 's done mixing it all together she removes the bavarian cream from the cup and puts it on a piece of paper which she folds around the bottom of the wine glass. (C) is done, she stops and points at a sandwich on a table. (D) is finished she separates the two containers and proceeds to mix another liquid into the metal container before pouring it back into a glass and adding fixings to it.
Output:
D