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: A man wearing grey shorts kneels down on a carpeted floor and begins stretching. The man moves his right leg under his hip and in front of his left knee. the man <sep> (A) continues exercising his left leg. (B) is then sitting while he's exercising and putting a harness. (C) then begins looking comfortable about doing this and stretches. (D) begins to rock back and forth in a slow movement as he stretches.

A: D
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Q: [header] How to involve a dog in pet therapy work [title] Consider your dog's temperament. [step] The main requirement for a therapy dog is that they must be incredibly calm, emotionally secure, and comfortable around all types of people. If your dog is nervous, shy, aggressive, or has any other qualities that cause him to behave in standoffish or threatening ways around people, then he would not be a good fit for therapy work. <sep> (A) Decide what you will be doing with your dog before giving it time to develop socialization skills. [substeps] Common characteristics of a therapy dog include a poor attitude, lowered behavior, and aggression. (B) A therapy dog needs to be calm and comfortable when : [substeps] He is approached by or surrounded by many people (children or adults). He is roughly touched or hugged by someone. (C) [substeps] This is especially true if he is a tense, unpredictable, and impolite dog. [title] If your dog is at a loss for words, help him learn some helpful skills. (D) [substeps] Dogs with a history of trauma and anxiety are less likely to engage in therapy. Anxiety, fear, or mistrust issues can cause a good experience for a therapist with a pet.

A: B
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Q: [header] How to train a deaf puppy [title] Learn how to get the dog's attention. [step] Thumping on the floor as you approach the puppy will usually work, since even deaf animals can feel vibrations. Flicking the light switch on and off is another option. <sep> (A) A flashlight is useful if you let your dog into an enclosed yard at night and need to call it back. [substeps] Vibrating collars are available that will let you get the dog's attention with a remote control. (B) [title] Sing or talk to the dog as you approach. [step] Waving your hands is also another way of drawing the dog's attention and keeping it engaged. (C) It can help your puppy understand what's going on in the room, and also can prevent the door from banging. [substeps] While it may help you to get the puppy's attention with the bang, a clapping ring prevents this tactic from working. (D) To work up a sweat, scream at the top of your lungs and run towards your deaf dog. [substeps] It's best to try this with the puppy a few times a day.

A:
A
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