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". 

Q: A bunch of men are inside a green colored gym. They are lobbing a tennis ball back and forth. they <sep> (A) are engaged in a game of tennis. (B) bounce the ball up and down on the trampoline as they go. (C) hit the ball up high into the air. (D) knock balls off the hoops into the spectators.

A: A
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Q: [header] How to make simple five minute frosting [title] Beat the butter in a medium-sized mixing bowl until smooth and fluffy. [step] You can use an electric mixer or a food processor. [title] Add the powdered sugar a small amount at a time. <sep> (A) [step] Use the stand mixer to mix the ingredients on medium speed until smooth and sugar dissolves. Add the vanilla, milk, and eggs. (B) [step] It will increase the strength of the frosting gradually. [title] Once 1 ½ teaspoons of powdered sugar is added, whip the butter. (C) [step] The mixture will appear dry and crumbly at first, but it will become smoother. [title] Gradually stir in the half-and-half or milk until you have reached your desired consistency. (D) [step] The more powdered sugar the healthier the frosting is. [title] Add the vitamin e oil, and stir to combine.

A: C
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Q: [header] How to maintain a corian countertop [title] Use dish soap and water to wipe down the countertop. [step] For everyday dirt, grime, and food residue, wet a sponge or soft cloth. Squeeze out a small circle of dish soap onto the sponge, and rub the soap into the sponge to get a soapy lather. <sep> (A) Wipe the sides and corners to get stubborn stains from grease and coffee, potato pulp, or anything else. [substeps] A standard kitchen sponge works nicely for this purpose. (B) Let the sponge dry and repeat the scrubbing process for all the countertops. [title] Scrub with the whiled stone soap. (C) [substeps] If you want, you can make your own mop out of a washcloth, but don't scrub too hard with that. If you don't want to use a cloth, however, you can invest in a test liter bottle of dish soap and water. (D) Wipe down your entire countertop with the sponge. Rinse the soap off the counters with a damp sponge.

A:
D
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