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". 

Input: Consider Input: [header] How to write a home improvement contract [title] Define what you want to do. [step] You can't write a good contract unless you can define exactly what you want to accomplish. Whether it's a major project like an internal remodel that includes adding rooms or rearranging walls, a new bathroom, or merely adding lighting, you must have a firm grasp on all aspects of the project. <sep> (A) [substeps] A full contract makes certain kinds of health and safety issues more likely. If you try to get your home as good as possible, the other person might skip ahead to any settlement offer. (B) Your objective should be clear from the outset, however. [substeps] Don't wait around for the right time. (C) [substeps] Make sketches or print out photos that closely match what you would like to do. This can help you when selecting a contractor and writing the contract. (D) [substeps] If you need to include a unique color scheme, don't just list and label certain, however. You don't need to thoroughly describe every detail of the project, either.

Output: C


Input: Consider Input: [header] How to fall asleep if you are blind or visually impaired [title] Talk to your doctor. [step] If you are a blind or visually impaired person who is having trouble falling asleep, you should set up an appointment with your doctor. Ask your doctor to examine you for non-24, a sleep disorder that frequently affects visually impaired and blind people. <sep> (A) This can help you make a diagnosis and develop strategies to speed up your recovery. [substeps] Ask your doctor if sleep loss, depression, dyslexia, or dyslexia problems might be the issue and advice you need. (B) A doctor can make a diagnosis of a sleep disorder and understand your problem. Treatment of the sleep disorder based on the condition will help your doctor identify the underlying cause and decide how long it is necessary to treat you. (C) Your doctor may refer you to an optometrist or psychologist who has experience treating dementia or cognitive dysfunction. Your doctor may want to examine you in several places or diagnose various medical conditions. (D) [substeps] Non-24 is a disorder that affects your sleep-wake cycles and is common in blind people. People with non-24 have trouble falling and staying asleep at night, as well as extreme urges to nap during the day.

Output: D


Input: Consider Input: [header] How to muffle a fan [title] Check that the fan's blades are evenly spaced and aligned. [step] Bend any blades out of position back into place. Do this very carefully as the blades could snap. <sep> (A) [title] Oil a fan's motor bearings if you hear a grinding, ticking or rubbing noise as the fan spins. [step] Use a non-detergent motor oil that is lightweight. (B) [title] Find a steady, sturdy object to hold onto. [step] A box, coffee can, or some other kind of flat surface will make it much easier to hold the fan. (C) [title] Shut up any other fans that may be in the room. [title] Turn off all other fans in the room. (D) Also look at the connectors on the blades. Note if your blades are well grooved or not.


Output: A