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 put music on facebook [title] Navigate to the website that features the music you want shared. [step] Examples of such websites are youtube and soundcloud. [title] Click on the " share " button located next to the music selection you want shared. <sep> (A) [step] You will be redirected to a page explaining to you exactly what music you want shared, and the category where it can be shared. [title] Click on " share " located below " share " in the drop-down menu. (B) [step] If you have multiple fans or listeners, you may see a link in the sidebar that says, " add a facebook friend to your friends list ". Click it if you want to add a facebook friend in the list. (C) [title] Scroll down until you see the right size. [step] If you are looking for music that is already on facebook, such as songs from a specific artist and/or a series of popular music videos, you will see the appropriate size. (D) [title] Select the option for facebook when asked how you want to share your selection. [title] Enter your facebook login information at the prompt.

Ex Output:
D


Ex Input:
[header] How to make scented rocks [title] Purchase supplies from a local department store or craft store. [step] You will need plain flour, salt, food coloring and essential oils. Essential oils are oils that have been extracted from various plants. <sep> (A) You do not need to use all different oils, but big quantities will work. [substeps] Choose oils that you associate with fresh fruits and vegetables and herbs. (B) It can be easily purchased at craft supply stores or you may be able to find them online. Get an essential oil primer, then make sure your acrylic rock is thoroughly coated. (C) You can also purchase essential oils from craft stores, or you can order a variety of essential oils online. [title] Mix together 1/2 cup (118 ml) of plain flour and 1/2 cup (118 ml) of salt in a mixing bowl. (D) You will need and obtain the following materials : [substeps] A 40 oz mixing bowl large enough to fit the stones. If you do not have these materials to gather, a mixing machine at an arts and crafts store can be more economical than a large ceramic mixing bowl, which will require little or no space.

Ex Output:
C


Ex Input:
[header] How to maximize sperm count [title] Don't smoke, and if you do, quit. [step] Smoking is associated with a lower sperm count and lower quality for the sperm that you do have. It can cause them to have the wrong shape and be less mobile, making it harder for them to fertilize the egg. <sep> (A) If you smoke, talk to your family and close friends in order to lower sperm production. [substeps] Some studies show that cigarette smoke boosts sperm production. (B) Smoking also has been linked to decreased sperm count and clinical odds of sperm getting fertilized. [substeps] Don't smoke as much as you should. (C) If you quit, your sperm count may improve. If you need help quitting, you can get support by : [substeps] Talking to your doctor, attending a treatment program, or seeing a specialist. (D) For this reason, it is highly recommended that you avoid smoking because it is more indicative of a higher sperm percentage. [substeps] Certain lifestyle changes such as quitting smoking are also a popular suggestion for reducing your chances of having a bleeding disorder.

Ex Output:

C