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: [header] How to make a mimosa bar [title] Choose a few types of sparkling wine. [step] No mimosa is complete without the bubbly. Start by selecting a few types of sparkling wine for your bar to accomodate different tastes and mix with different juices. <sep> (A) Dijon has 5 glasses : 1 glass white , 1 glass sparkling wine , 1 glass light rum and 6 glasses of bubbly. Different juices add different flavors, but not an exact science. (B) [substeps] Sparkling wines, like cabernet sauvignon, champagne liqueur, or wineries, tend to have a more tart sense. Sparkling wines, like white wine, are versatile and can become cold easily. (C) Try wines like : [substeps] A cava or brut for a dry taste prosecco for a light but sweet flavor champagne for a rich and creamy flavor sparkling rose for floral and fruity notes [title] Figure out the amount of wine you need. [step] The average bottle of sparkling wine is enough to make about six to eight mimosas. (D) [substeps] Reds, sudafed red, and a third color (one or more a grape have) will combine well and produce the mimosa. Red may have slightly acidic undertones so it improves the sweetness of both waters.
Example Output: C

Example Input: [header] How to stay young [title] Challenge yourself to try new things. [step] Go out dancing, joining a book club or a hiking club, or try out for a community chorus. Singing, dancing, and finding new ways to stay active all contribute towards keeping a youthful outlook on life. <sep> (A) Here are some things to take into account : [substeps] Spend less time studying or practicing. Read only the books you are interested in, do not read video games, and do not browse old magazines or websites. (B) [substeps] Don't be afraid to laugh at yourself. Trying new things with joyfulness raises your levels of dopamine and energy levels. (C) [substeps] Try a fun game like punch or catch. Then, in the morning, you'll feel fresh and energized, and all your racing thoughts will be washed away. (D) If you can, challenge yourself to put in hours or weeks into each of these activities. Try hard but don't give up if you cannot help someone in need.
Example Output: B

Example Input: [header] How to install windows xp on a windows vista computer [title] Consider if you really want to downgrade. [step] The most problematic issues with windows vista only apply to the original 2006 version of vista, not the newer sp1 version that comes with computers sold today. Windows 7 also doesn't have these issues. <sep> (A) Windows vista can upgrade the c: \ program files with newer version: xp recovery. [substeps] Xp recovery-this will restore the old version of windows 7 to the old version of windows vista 7. (B) Windows vista (7) also includes many features that enhance productivity, including instant desktop search, and features improvements in security. [title] Back up the files you want to save. (C) To put it another way, these common issues were developed by the internet later on, but computer configuration is no different today. Trying to install vista hardware without having to install hardware on the same of the windows vista computer. (D) You can downgrade from an earlier version of vista system by working on another version of vista. You will need to type in the manager name from the start menu or click " windows 8.1.
Example Output:
B