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
****
Q: [header] How to eat a maryland blue crab [title] Check to see if the blue crab is in season. [step] The maryland blue crab can be found fresh or pasteurized (sealed in cans and heated to kill pathogenic organisms) throughout the year, but it is not in season all year long. The crab season in maryland starts in april and ends in december. <sep> (A) [substeps] Crabs are usually less expensive at the beginning of the season. Crabs harvested in june through august are the most flavorful. (B) However, it may also be in the winter time, if temperatures are below freezing. Check the crab's growth schedule to make sure that it is in good shape. (C) [title] Buy a crab that is not in season through meat and seafood market. [step] When all meat gets picked up, the crab goes into season. (D) [title] Purchase crab with a cold peg before your meal. [step] A cold peg nips off the bottom of the crab's shell, so check carefully when purchasing it.

A: A
****
Q: [header] How to pick a healthy gerbil that suits you [title] Observe the gerbils for a while. [step] Which seem active? Which seem happy? Look closely at the animals and see if they are generally perky. [title] Look for any symptoms. <sep> (A) [step] Gerbils live a long life and do not do well as pets. If you see any signs of a problem then your gerbil might be ill. (B) [step] Are their eyes open and bright? Make sure none of the gerbils have wounds, these are usually indicators of a past fight. Their coats shiny and well kept? A rough coat is usually a sign of illness. (C) [step] Watch out for : [substeps] A clicking beak for eating symptoms one wanting to stop moving or burying a few clicks clicking of the lips going dark brown skin. A panting face that could lead to hunger, which could indicate that the gerbil is bored or is irritable. (D) [step] Normal or docile gerbils of a weight between 29.5 and 23.6 kilograms are typical gerbils. [title] Keep checking with your vet if you have concerns.

A:
B
****