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:
[header] How to use memes on facebook [title] Log into your facebook account. [step] Go to facebook, and if you're not logged in yet, enter your registered email address, or username, and password in the top right fields. Click " log in " to continue. <sep> (A) [title] See all the memes in the top left section. [step] The memes you want to edit are listed below. (B) [title] Use the appropriate heading to search for memes. [step] In the upper-right corner of the page, you'll see a drop-down menu. (C) [title] Click the update status box at the top of the page. [step] There's an update status box at the top of your facebook news feed and timeline. (D) [substeps] If you haven't signed in yet, you'll need to give the sign in process a shot. Click the " sign in " button in the upper-right corner of the screen.

Ex Output:
C


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:
A person is filming a house and a dog walking into frame. A small girl is washing the floor with a mop and talking to the camera man. the camera man <sep> (A) pans to many people grabbing brushes and speaking to that person while boats are moving. (B) shows the boy holding a measuring tape, then runs the mop under sink and lets it rest. (C) is filming the girls cleaning and acting as vice versa. (D) talks to the girl about cleaning and why she likes it.

Ex Output:

D