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: He wraps a box with tin foil then writes on the box with a marker. He lays out more tin foil and wraps another object with it. he <sep> (A) ties the presents shut and wraps up with the tin foil. (B) finishes wrapping all objects with tin foil and showing how. (C) shows the tin foil as well. (D) then places the tin foil and tins on top.
Output:
B