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 change windows xp home to windows xp professional [title] Enable the features found in windows xp professional on your windows xp home edition installation with this hack. [step] It will allow you to turn your windows xp home cd into a windows xp professional cd. [title] Copy the root directory and the i386 directory of the windows xp cd to your hard drive. <sep> (A) [step] You have to be legally licensed to install windows xp-like programs, so make sure you get that jurisdiction here. [title] Once you have copied the root directory into your hard drive, extract the i386 directory from the drive. (B) [step] Again, use the same address as before to make your case. [title] Right click on the drive that you wish to save your new windows xp home to and select properties-] properties from the dropdown menu. (C) [title] Extract the boot sector of your windows xp cd. [title] Click start--] run--] regedit [title] Highlight hkey _ local _ machine [title] Click file--] load hive and select the setupreg.hiv file. (D) [step] You can easily add the other components by browsing on the internet. [title] Install windows xp professional cd-rom on your windows xp computer once you complete the installation.
Example Output: C

Example Input: [header] How to act and dress like emma ross [title] Hair. [step] Emma has gorgeous, shiny blonde hair which she brushes and styles well every day. This means to take very good care of your hair. <sep> (A) Clean your hair at least once a week. Keep it straight and smooth with some left over hairspray everyday. (B) Emma enjoys keeping her hair in mostly ponytails. Sometimes, she has hair-grips or bobby pins to keep her side bangs back. (C) Start by using hair products everyday to ensure your hair doesn't look greasy. Then, if you have long hair (short, curly, tousled or wavy! ), use conditioner with hydrating ingredients. (D) Try running a comb through your hair every day to detangle it just how she likes. This will help your curls look soft and healthy rather than bouncy and uncontrolled.
Example Output: B

Example Input: [header] How to calculate how many calories you need to eat to lose weight [title] Calculate your basal metabolic rate (bmr). [step] Your bmr will tell you how many calories your body needs to function properly if you spent the entire day doing absolutely nothing. This is also known as your metabolic rate or metabolism. <sep> (A) You can calculate what percentage you lose on a regular basis using " bmr, " the body weight in pounds. [substeps] Bmr refers to the number of times a part of your body does some exercise and metabolism. (B) [substeps] Your body burns calories just to fulfill life-sustaining processes like breathing, digesting food, repairing and growing tissue and circulating blood. You will use the results from the bmr equation to find out how many calories you need to either lose weight or maintain your weight. (C) Bmr will come in a variety of forms. [substeps] Men should weigh between 200 and 875 bpa, while women should weigh between 450 and 675 bpa. (D) [substeps] The bmr can also be written down on a notepad or a spreadsheet, and it can be worked out by taking this little step and then dividing it by 5. As we said we need to eat between 10 , 000 and 1.25.
Example Output:
B