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 recover from an active sysprep (any windows os ) [title] Assuming your machine cannot boot into windows, insert your installation disc and boot into that. [title] When disc finishes loading select your language and hit next. [title] Click the repair tools or repair my machine on the bottom left hand corner. <sep> (A) [title] After the repair is done, open system preferences in windows xp and select system repair options by clicking load item then system tools. [title] To reboot system preferences select wipe device from system panel. (B) [title] There you can see-the difference between sysprep's system is that he uses the system repair disc and the os version of windows. [title] Repeat the process for all type of windows os if you haven't already; make sure you don't install more than half a batch. (C) [title] After windows is fully installed, select your system or game driver and click properties-] system settings-] installing device. [title] Click continue if required then click next. (D) [title] It will now search for an installed operating system. [step] If nothing shows up you will need to download the storage device drivers for your machines from the manufacturer's web site, put them on a usb flash drive, and click load drivers button.

Ex Output:
D


Ex Input:
[header] How to make simple five minute frosting [title] Beat the butter in a medium-sized mixing bowl until smooth and fluffy. [step] You can use an electric mixer or a food processor. [title] Add the powdered sugar a small amount at a time. <sep> (A) [step] Use the stand mixer to mix the ingredients on medium speed until smooth and sugar dissolves. Add the vanilla, milk, and eggs. (B) [step] It will increase the strength of the frosting gradually. [title] Once 1 ½ teaspoons of powdered sugar is added, whip the butter. (C) [step] The mixture will appear dry and crumbly at first, but it will become smoother. [title] Gradually stir in the half-and-half or milk until you have reached your desired consistency. (D) [step] The more powdered sugar the healthier the frosting is. [title] Add the vitamin e oil, and stir to combine.

Ex Output:
C


Ex Input:
[header] How to make money as an elementary school student [title] Ask for an allowance. [step] Many children earn a weekly allowance. This allowance is to pay for everyday things like buying food or going out with friends. <sep> (A) It might be nice to extend it on a regular basis. The amount you earn per week doesn't necessarily have to be that huge depending on the age of the child and its needs. (B) Ask the teacher if they have a reasonable allowance you can take advantage of. If you don't receive one, ask if you can limit your allowance to how much you can earn. (C) Having an allowance can help you manage your money well-even if you don't have an allowance. [title] Teach your children about the value of money and the benefits of work. (D) If you don't already earn an allowance, ask you parents if they would be willing to start giving you an allowance. [title] Ask for a raise in your allowance.

Ex Output:

D