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". 

Example Input: Multiple colors and designs flash across the screen. women <sep> (A) are shown completing pairs of women's first pair. (B) gather onstage as they are about to perform. (C) are interviewing a man in a room in front of an orchestra, with a man sitting on a couch nearby. (D) alternate with hairspray and styles to help themselves style, style, and style.
Example Output: B

Example Input: [header] How to get your boyfriend back when he broke up with you [title] Try to understand why the relationship ended. [step] Was it a fight, cheating, or did you feel that he slowly lost interest? Understanding why he broke up with you will help you understand if trying to get him back is the best thing to do. [substeps] Think about his behavior in the weeks before the breakup. <sep> (A) Do you recall his comments funny, flirty, or romantic? Try to lighten up the way he treated you that day. Maybe he asked you to dance, for example. (B) If he seemed to have moved on by the time you were together, you might have a rough time dealing with this together. [title] Look for traces of him doing what he used to do. (C) This will help you determine if the relationship can be saved. If it was a sudden breakup resulting from a disagreement, then he just may need some cooling off time. (D) How you feel about his behavior during the months after the break up is probably confidential. Even if the relationship ended, how you feel now about him is entirely up to him.
Example Output: C

Example Input: [header] How to install custom firmware [title] Record the router's model and version number. [step] These numbers are usually located near the manufacturer's logo, underneath or in back of the router. Write down the model and version information for future use. <sep> (A) [substeps] If you are using windows xp (default operating system), the model number can be found in the start menu under " system settings. " skip all the discussion menus, and then go to system preferences. (B) [title] Obtain the router's ip address and default gateway for your computer system. [substeps] Determine the ip address and default gateway for a pc. (C) [substeps] " w " with the green background is the serial number for the model. " p " with the red background means " unhappy operating system. (D) [substeps] It is easy to determine what operating system is running on your router if you don't know the model. Copy the model from the registry to convert it to your operating system.
Example Output:
B