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:
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.

Ex Output:
A


Ex Input:
[header] How to reduce calories in coffee drinks [title] Use a low calorie sweetener. [step] Replace teaspoons of sugar added directly into your coffee with a low calorie or no-calorie sweetener, such as splenda. Follow the directions on the package regarding serving size and resist the urge to add extra. <sep> (A) You can also request this substitution when ordering at a coffee shop. [substeps] It is best to choose sweeteners that do not list " aspartame " as one of the ingredients. (B) Sweet drinks containing no sweetener limit should do the same. [substeps] Four servings for a half-ounce glass of coffee will give you seven servings. (C) Sugar-sweetened coffee drinks can cause you to feel full and merry, as they add less calories to your coffee and save you time and energy. It's best to avoid this throughout the day. (D) Typically, this amount of sugar is equivalent to a light sized shake, but it could be less to add to a light, calorie-heavy shake. [title] Drink more juice, if at all.

Ex Output:
A


Ex Input:
[header] How to use household items to remove shoe odors [title] Steep black teabags in hot water. [step] Black tea has a high concentration of tannins, a substance that works well for killing odor-producing bacteria in your shoes. Steep two teabags, one for each shoe, in boiling water for two to three minutes. <sep> (A) The mild tannins will loosen dirt, and will help prevent any pooping. [title] Dunk the shoes gently with a cloth or newspaper. (B) [title] Soak or massage black tea bags. [step] If you don't have reliable ways to identify just how bad a smelly shoe smells, try soaking or massaging black tea bags. (C) [substeps] To prevent yourself from getting burned by a hot teabag, you may want to use a utensil for removal. A spoon, fork, or tongs can help you safely remove your teabags. (D) To test the tea's tannins, let them steep briefly before removing the shoes. [substeps] Cool the tea before removing the laces.

Ex Output:

C