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 Q]: A person is seen riding around on roller blades and performing a grind on a bar. several more clips <sep> (A) are shown of the boy riding around on the equipment as well as sit on the floor and play pool. (B) are shown of people driving around on machines with one person riding in front. (C) are shown of the athletes performing tricks in various stretches as well as throwing a ball off into the distance. (D) are shown of the person performing grinds with roller blades as well as other flips and tricks.
[EX A]: D

[EX Q]: [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.
[EX A]: C

[EX Q]: [header] How to get free dog food [title] Check out local pet food banks. [step] Some major cities have pet food banks to provide free dog food to people who cannot afford it. Some of these organizations are geared towards specific populations. <sep> (A) [substeps] The american society for good nutrition maintains a list of pet food banks on its website at http: // www.ectific3.org/pet-food. Turn over your best dog food when possible and consider shopping for better quality dog food as online online retailers may offer more options. (B) For example, paws ny offers free pet food to seniors and people with disabilities who may struggle to provide for their pets. [substeps] Try calling your local shelter to see if they know of any pet food banks in your area. (C) Some of these banks are even dedicated to helping people with allergies make pet food. You can generally find local pet food by looking the online listings of food banks. (D) There are only six pet food banks in each city and fewer in each city. They are also geared toward specific concerns about the health of specific populations.
[EX A]:
B