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". 

[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.
D

[header] How to measure clothing for your cat [title] Measure a calm cat. [step] Catch your cat in a good mood, or a sleepy mood. Wait until your cat is holding still, and take his or her measurements. <sep> (A) Remember to ask beforehand if the cat's body language indicates a calm individual. [substeps] If your cat is growling, meowing, or hissing, this indicates a calm individual. (B) Your cat may jump up to grab the measuring tape or unlike with its usual behaviour. Make sure your cat stays still and seem both calm and alert. (C) If your cat is hyper, play with him for a while and gradually calm him down. For example, let your cat chase a toy for a while, then let him catch the toy. (D) Cat fur is a delicate fabric, and your cat will be easily scratched if you mess up the measurements. [title] Put your cat in a comfortable place.
C

The lady makes frosting in the mixer and puts frosting in between the layers of cake and on top. the lady <sep> (A) takes the cake out of the mixer and puts it in a plastic bowl. (B) continues to mix the cakes under the frosting. (C) adds base frosting and what looks like a pumpkin decorates. (D) cuts the cake and we see the ending title screen.

D