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". 

[EX Q]: [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.
[EX A]: D

[EX Q]: [header] How to transfer money between bank accounts [title] Ask a teller to transfer. [step] The easiest way to transfer might be to stop into the bank and ask a teller to move some money around. Have your account information available and state how much you want moved and where. <sep> (A) A teller may be open to letting you move funds anywhere you prefer and how much you want to transfer. This will allow you to transfer money from another account directly into the bank. (B) You might need to fill out some slips at the counter. The teller should be able to help you. (C) Ask the teller if there is a " no processing fee " fee for this service. [substeps] This fee can range from $25 to $75. (D) [substeps] By moving your money, you are allowing your bank to know the funds being transferred. For example, in the us, the bank receives funds one month after a certain date as part of a maintenance check.
[EX A]: B

[EX Q]: [header] How to freeze tofu [title] Drain the tofu. [step] If the tofu is in a package, open it up and drain off all of the water. Don't spend too much time on the draining process. <sep> (A) You want to keep the tofu mostly whole. [title] Mix the tofu and cream cheese in a blender. (B) If you aren't incredibly worried about texture and you just want to keep the food fresh, then feel free to skip the pressing steps and freeze the tofu directly after you drain it. [title] Place the block of tofu onto an absorbent surface. (C) [title] Place the tofu in a bin. [step] A large bin works best, since it's easier to see how much is in there. (D) Tofu is tender, and draining it too soon may cause the moisture to become trapped inside, causing more moisture to drain into the nooks and crannies. [title] Check on the tofu per serving.
[EX A]:
B