Given the task definition and input, reply with output. 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 brown rabbit with a white belly is sitting on the ground and grooming itself while licking its right side. when the rabbit <sep> (A) is released, it runs to the toilet, and those on the floor get it. (B) stops licking its right side it briefly faces forward and its left back foot scratches its left ear then he licks his left paw. (C) is done eating, the owner shows off its teeth as it licks the owner finger in its mouth. (D) is finished licking its paw, the dried off part of its fur and off of its black nails.
B