Definition: 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: [header] How to deal with a barking dog [title] Get rid of stimuli. [step] Take a look at what makes your dog bark and find a way to remove that motivation. If your dog likes to bark at passing pets they see through the window, close your curtains or blinds. <sep> (A) If your dog is due for a reward, your dog will associate the bark with the action instead of your pet. [substeps] You can try switching the lights on at night or rolling up the window when your dog barks. (B) If they bark at the doorbell, encourage individuals to call or text you and let you know they're at your home. [substeps] If there is a stimulus you can't get rid of completely, such as your dog barking at their reflection in the window or mirror, try to limit their access. (C) If your dog loves there-noise, vibrations from wind and other stimuli help block out the dog barking. Control any unwanted noises by taking a bubble bath or dog shampoo and making sounds. (D) If your dog doesn't like to bark, remove the dog from your home. [substeps] Whenever you have work to do, shut down all your lights, open your windows, and change your pets regularly.
Output:
B