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: [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


Input: Consider Input: We see a lady and a girl on a raft on a snowy hill. The lady and a man push people down the hill. the people <sep> (A) slide in rafts down the hill. (B) are riding canoes and going on fishing trips. (C) ride down hill on their skateboards and the camera watches them. (D) are then seen skiing down the mountain.

Output: A


Input: Consider Input: [header] How to take care of a labrador puppy [title] Know, before hand, that you have the resources, and time to take care of a lab puppy. [step] If you don't, both you and your puppy could suffer. [title] Choose the lead, collar, bowl, food type, and sleeping places. <sep> (A) [step] Also make sure your brush and pen is clean. Also make sure your model puppy brushes in dirt. (B) [step] Make sure you have quality cleansers and that the puppy is not easily frightened of anything. [title] Pick a sleeping area to give your puppy access to the toilet. (C) [step] Provide the following things for your puppy : [substeps] During puppies sleep, they need solid human food. During the day, go for canned food. (D) [step] This will be where the puppy will go for the rest of his/her life, so choose wisely. Remember, that food and water needs to be kept under shelter.


Output: D