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]: Two men are inside a gym together. They are engaged in a game of table tennis. they <sep> (A) kick the tennis ball back and forth against the wall. (B) hit the ball back and forth over the net. (C) crash into each other and then continue to play the game. (D) punch and kick at each other as they play.
[EX A]: B

[EX Q]: [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.
[EX A]: B

[EX Q]: [header] How to grow asters [title] Prepare the seeds in winter. [step] If you choose to sow seeds indoors, you should do so roughly one to two months before your expected transplant date. [substeps] Note that seed germination tends to be fairly uneven, so do not expect all of the seeds you sow to grow. <sep> (A) Plants require different amounts of time to germinate, so try to choose seeds that will typically be growing in the past week before your transplant date. Monitor the moisture level of the soil in the area during the first few weeks after bringing in a new plant. (B) Since seed germination is so unpredictable, many gardeners prefer to buy seedlings from a garden nursery or to use plants divided from previously established asters. [title] Fill small containers with seed starting medium. (C) Cut small circles out of the soil in order to start seed germination. Pick small, specialized seeds that only sprout when the first frost of the season comes. (D) Control the weather for the season so the plants do not need all of them. It is common for asters to grow in well-drained, colder soil.
[EX A]:
B