Q: 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 big stump is hit with an ax to make some cord wood. the chain <sep> (A) part of the stump is untied and a chain is placed around the stump and tied into place with some flint. (B) is removed and split wood falls out. (C) of a door is taken off of a wall and replaced with a larger metal pole. (D) of the ax gets stuck into the wood of the stump.
A:
B