instruction:
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".
question:
[header] How to set up a baked potato bar [title] Prepare ahead of time, even the day before. [step] This way, the toppings will be ready and you can focus on preparing for the party event. Make sure all of your topping items are covered in their serving containers and put them into the refrigerator ahead of time. <sep> (A) [title] Put together your mixers and dipping sticks. [step] Using your pre-prepared ingredients, use the pouring and collecting method to start heating your ingredients. (B) [substeps] Don't prepare foods more than 24 hours ahead of time. Keeping them as fresh as possible is important. (C) [title] If you plan on using frozen toppings, have them freeze. [step] You want them to be thick enough to last. (D) [title] Cover the baking sheet with 2 " baking paper. [step] Turn the temperature to medium-low, and place the side dish on the baking sheet.
answer:
B

question:
[header] How to use a vanilla bean [title] Split the pod if you want to use the seeds. [step] If you are planning to use the vanilla bean in a batter for a cake or for a batch of cookies, you will need to open the vanilla bean pod and remove the seeds. You will then add the seeds to the batter to infuse it with a natural vanilla flavor. <sep> (A) [substeps] [substeps] Wait a few minutes before parting the pod or moving it to a serving dish. Being too cold will crush the seeds as they break into the batter. (B) [substeps] Removing the seeds can make it easier to infuse the pod with a natural vanilla flavor. A good rule of thumb is to reserve about cup (100 g) of pod before you can drink the rest. (C) [substeps] Keep in mind that you will not be able to extract the seeds directly from the pod if you plan to use it. Instead, you will be mixing the seeds into the flour. (D) [substeps] To split the pod, lay the vanilla bean pod on top of a clean, dry cutting board. Turn the hooked end of the vanilla bean to the top of the board.
answer:
D

question:
[header] How to help your dog whelp or deliver puppies [title] Take your dog to the veterinarian. [step] If your dog's pregnancy is planned, take her to the veterinarian for a check-up before breeding her. Bring her in again about 30 days into the pregnancy. <sep> (A) This gives the vet the opportunity to decide if the pregnancy is appropriate for breeding, and how many puppies the baby needs. The vet should also examine your dog's vulva-the pink uterus between the urethra and urinary tract. (B) The vet will run some simple tests to help detect pregnancy changes. These include a urine sample and x-rays, and then blood to measure uterine tissue. (C) If the pregnancy wasn't planned, take her to the vet as soon as you find out she's pregnant. [substeps] If you plan to breed your dog, it's recommended that you wait until she's at least 24 months old. (D) [substeps] Urinary tract infections often cause breeding. During this point, the vet will ensure your dog does not have urinary tract infections.
answer:
C