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 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.
Example Output: D

Example Input: [header] How to recognize chickenpox [title] Watch for symptoms on the skin. [step] Approximately one or two days after developing a runny nose and sneezing, you may see red spots on your skin. These dots often start on the chest, face, and back, are often itchy, and can quickly spread to the rest of the body. <sep> (A) [substeps] When this occurs, it may also be due to a new virus. If you experience any major allergic reactions to chickenpox, such as hives or rashes, contact the doctor. (B) If you suspect that you may have chickenpox, you can easily detect these signs and get medical care. [substeps] These red itchy spots may be small, crisp, or feel tight when you press them onto your skin. (C) [substeps] If you are experiencing a runny nose, you may also develop a flu or fever the following day after taking chickenpox. Syphilis, the " natural flu, " often shows up early in the infection, and even greater in children. (D) [substeps] These red spots will turn into red bumps and then small blisters (vesicles). These spots contain the virus and are highly contagious.
Example Output: D

Example Input: A person is then seen putting the girl's hair up in several dos while showing it to the camera. the girl <sep> (A) then puts around the dark curls as well as running her fingers through them. (B) continues putting in her hair and ends by showing off her teeth. (C) then runs through her hair while applying another dos and ends up looking pretty amazing. (D) continues to show off hairstyles while smiling to the camera.
Example Output:
D