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 Input:
[header] How to make filling steak salad [title] Wash and slice the lettuce and cucumber, and add them to the salad bowl. [step] The lettuce should be sliced about 1/2 " wide, and the cucumbers should be quartered lengthwise and then sliced. The salad bowl should be medium-large sized. <sep> (A) [substeps] You can also wrap the top half of the lettuce with aluminum foil, and then set it aside for later. [title] Heat oil in a shallow frying pan or skillet and slice cucumbers over medium heat. (B) [substeps] If you have any extra long slices of lettuce, cut those into thirds. [title] Add the mozzarella cheese to the salad bowl, and toss until everything's combined. (C) [title] Combine the olive oil and turmeric with the lettuce, mix well, and pour in the juice from your scallions. [step] You can speed the process considerably with olive oil and turmeric. (D) [title] Thinly slice and submerge the lettuce in the water. [step] Make sure that the water covers every inch of the lettuce.

Ex Output:
B

Ex Input:
[header] How to treat ingrown eyelids in dogs [title] Look for squinting. [step] Squinting is an easily recognized sign of eye irritation. Your dog may squint if it feels like there's something in the eye that it can't get out. <sep> (A) In this case, the ingrown eyelid is causing the eyelashes to rub directly against the eye. If you can't tell if your dog is squinting, compare the size of your dog's irritated eye to the other one. (B) This is not always an indication of eye irritation. It's often the case that tears will build up within the eyelids, which can cause the eyes to appear unfocused and dry. (C) It may also display its eyelids twitching or blinking repeatedly. Some dog owners find it embarrassing to have their dog squint because of its inability to see. (D) Visit your vet if you notice : [substeps] Squinting irritation blockage of the eye. This is the case with retinitis, which causes squinting.

Ex Output:
A

Ex Input:
[header] How to build hamster toys out of household items [title] Gather together several popsicle sticks. [step] The number of popsicle sticks that you will need will depend on how tall you want to make the ladder. [title] Rinse off the popsicle sticks to remove food residue. <sep> (A) [step] Use more water once you're happy with the size of the sticks. [title] Draw the popsicle stick shape on the cardboard sheet. (B) [step] The stickiness of food residue could make it difficult for your hamster to walk on the ladder. [substeps] Allow the popsicle sticks to dry completely. (C) [title] Put the 3 popsicle sticks together into a bundle. [step] As your hamster reaches the top of the center bundle it will continue to stack each one on top of a neighboring stick. (D) [title] Grab the popsicle sticks and make hamster bars out of sticks. [title] Shape the bars in rope or connect toothpicks with the glue.

Ex Output:
B