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: A woman is playing a set of bagpipes in a room. she <sep> (A) begins to tap on the instruments, trying to play them in tune with each song. (B) laughs as a man helps her adjust the pipes, and continues to play. (C) goes back and forth, and she doesn't seem to be confident in her play. (D) strums them as she moves with the music.
Example Output: B

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 sharpen lawn mower blades [title] Disconnect the spark plug and power source. [step] A lawnmower can cause serious injury if it starts while you are working on it. Always disconnect the spark plug and the power source (outlet or battery) before disassembling your mower. <sep> (A) [substeps] The spark plug can usually be disconnected by removing a prominent wire on the side or front of the lawnmower engine from its metal mounting. Once disconnected, the engine should not be able to start. (B) Reconnecting these electric or non-electric components could potentially ruin your mower. [title] Put back your mower's fuel tank. (C) [title] Make sure to check to see if a sticker is stamped on the blades, entry holes and bindings around the blades. [title] Replace parts if you cannot find a sticker on the blades. (D) Always keep a close eye on the mower at all times, especially at night. [title] Preen your lawn and keep it clean.
Example Output:
A