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". 

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.

A: C
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Q: . four bikers at the start of the line <sep> (A) get no a jump. (B) are wearing different colors of uniforms and helmets, they are about to get start the race. (C) leave and race towards a parking lot on the right. (D) go on the parallel bars but they can't take off their bikes.

A: B
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Q: [header] How to cool beers without a fridge [title] Cool beers with cold water. [step] This is one of the fastest ways to lower the temperature of a beverage, and you can do it indoors or outdoors. Completely submerge the surface of your beer container in cold water; the colder, the better. <sep> (A) Cold water kills any bacterial contamination the beers have developed. [title] Add ice to clear the ferment of the flavors. (B) If the water is icy, you should be able to sufficiently cool a beer from room temperature to " party cold " within five minutes. The process might take somewhat longer if you're outdoors, or if the water is warmer. (C) [title] Heat your beer in a baking pan. [step] A baking pan is a baking tray or basin with a door to let air in from a back porch, or outside onto a porch that will allow the alcohol to evaporate. (D) If you don't have a refrigerator, you could write, " chill refrigerator " with the hood down. [substeps] Never allow rocks, bugs, and debris to sit on your ingredients (" cheese ").

A:
B
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