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 teach your dog to speak [title] Choose your reward. [step] Pick something your dog really loves; the better the reward, the easier it will be to teach your dog. If your dog loves to play, you can try using her favorite toy and playing with her when she barks. <sep> (A) In some cases, you can train your dog to bark through verbal praise. [substeps] Figure out your dog's reward based on cultural context. (B) Point out what your dog likes to play with and put a look on the chart indicating what she wants to learn. [title] Tell your dog to " sit ". (C) Most people, however, will find that treats are the most effective way to teach a dog. The best treats will be ones your dog loves, and which are also easy to carry, easy to break into pieces, and healthy. (D) If her bark is off-putting, encourage her to try other tricks, to avoid barking. [substeps] If you provide a toy or two, this will be enough to train your dog to try the reward.
Example Output: C

Example Input: The horse gets up but, the man remains on the ground. The other players and a referee ride their horses away. one of the players and a woman <sep> (A) run to the field to inspect the ond horse. (B) walk over to check on the man on the ground. (C) lift up dirt to clean the horses hooves and a replay is shown of the actual hoofs. (D) walk to the man & them.
Example Output: B

Example Input: [header] How to get rid of threadworms [title] Take one dose of an anti-worm medication. [step] Your doctor will prescribe (or recommend an over-the-counter version of) an anti-worm medication. Some examples include mebendazole, pyrantel permeate, and albendazole. <sep> (A) [substeps] Do not get more than the recommended dose if you have a disease that requires ibs. It will be nearly impossible to treat these conditions until your reproductive organ is redeveloping and is strong enough to handle the medication, though this may take several months. (B) You will be directed to take one dose of one of these medications (follow the specific instructions of your doctor) and then to wait two weeks. [substeps] The way this medication works is that it kills off any adult worms. (C) Other medicines that are advertised as " anti-worm-free " or " astringent " include lysol, deoxicant, and baisoup. [substeps] Do not get more than a few doses of an anti-worm medication. (D) These anti-worm medications are often administered orally or injected twice a day (usually by injection). [substeps] You can usually get these antivirals in capsule form or in pill form at your local pharmacy.
Example Output:
B