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". 

Input: Consider Input: [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.

Output: B


Input: Consider Input: We see a rowing machine in a exercise room. a lady <sep> (A) picks up a machine and lifts it to her shoulder, then drops it. (B) starts putting her feet in the turning machine. (C) sits on the seat and pulls the cord of the rowing machine. (D) pushes a machine.

Output: C


Input: Consider Input: [header] How to wean your baby from your bed [title] Talk to your baby about the transition. [step] Read him books about babies and children who sleep through the night. Talk about how happy it makes mommy and daddy when he sleeps until morning. <sep> (A) Research shows that you can gradually wean your baby from the diapers and your mattress when you wake up. [title] Play " akies " with your baby. (B) Make a point to emphasize that daytime is for playing and having fun, while nighttime is for sleeping and relaxing. Remember to reinforce every little step he makes with praise. (C) Think of a fun bedtime routine for him to begin to care for. You can also cook healthy meals he enjoys. (D) Talk about how the arrival of twins can make his daily life even more special. [substeps] Read " mommy " by joan hamry when he wakes up and " daddy " by lara ross when she goes to school for the first time.


Output: B