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: Consider Input: A dog is outside in a large field and runs towards a man holding a yellow frisbee. the man <sep> (A) then throws the frisbee, the dog catches it and begins swimming back and forth in the water. (B) frisbee the dog around the frisbee and the dog chases the frisbee and catches the frisbees. (C) attempts to catch the frisbee but it is deflected by the large dog. (D) then begins walking and throws the frisbee for the dog to catch.

Output: D


Input: Consider Input: A man is standing in the snow. he <sep> (A) is holding a large shovel. (B) is in an area filled with trees, and he is being held up by another man. (C) grabs a scoop and shovels it out. (D) is holding on to a rope attached to a machine.

Output: A


Input: Consider Input: [header] How to unblock a toilet when you have no plunger [title] Cover the end of a mop with a plastic bag. [step] Pull the bag over the end of the mop. Then, tie it off or secure it in place with a rubber band. <sep> (A) You can also use a rag or a toilet cloth to help secure the bag if you don't have a mop. [substeps] Try using empty containers to provide more protection. (B) After securing the handle of the mop, throw it away. [title] Turn on the water faucet. (C) [substeps] Discard any waste that falls from the end of the mop. [title] Use the bucket or bowl to catch any urine that spills out. (D) [title] Plunge your toilet with the mop. [step] Use a forceful in and out motion like you would with a normal plunger.


Output: D