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]: A man is talking on a basketball court. he <sep> (A) picks up a bottle of water and takes a drink of the water. (B) shows how to play the volleyball. (C) then demonstrates how to throw a ball to the goal. (D) starts hit by the ball.
[EX A]: A

[EX Q]: [header] How to get super glue off skin [title] Select the right nail polish remover. [step] Acetone is the substance in nail polish remover that helps dissolve superglue for removal. You need an acetone-based remover in order for this method to be successful. <sep> (A) Too much acetone can cause further damage and discoloration, so look for an acetone-based remover that contains benzoyl peroxide. This form of treatment works best on especially dark blemishes, but you can also use this method for lighter polishes. (B) For the traditional " acetone-based " nail polish remover, create a thick, grainy layer on both sides of each nail. [substeps] Alternatively, you can soak a cotton ball in acetone and dab it up against the entire surface of each toenail. (C) [substeps] Check the ingredients label of your nail polish remover. Acetone should be listed here, usually towards the top of the list. (D) It may be injected directly into the concealer border or you can buy it online. You can use a nail art brush to apply the acetone, or dip a cotton ball in acetone-based remover and gently rub your skin with the cotton ball.
[EX A]: C

[EX Q]: [header] How to grocery shop with a young child [title] Pick a time when your child will be happy and awake. [step] If your child takes a nap around 1 pm every day, don't start your grocery shopping at 12:30. Pick a time when your child is alert, fed, and happy. <sep> (A) Early morning and late afternoon are probably good time choices. [title] Choose a time to make the purchase. (B) [substeps] If needed, bring snacks and drinks in the car to avoid bringing a cranky, hungry child to the grocery store. [title] Plan your route to the grocery store in advance. (C) The first benefit of this method is that the child can enjoy the day and fall asleep more easily. [substeps] Give your child time to adjust to the great outdoors in the family room or the garden at the back of the house. (D) On the other hand, since your young child will be waking up with a few hours to spare, pick a date when he will still be rested and likely to have energy for the day. [substeps] Pick a time that allows for plenty of natural sunlight, no cars, and no work in the afternoon.
[EX A]:
B