This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to teach your dog the stop barking command
Command your dog to " speak.
" though it may seem counterintuitive, it is important that you start by getting your dog to learn the " speak " command. Doing this will allow you to control when your dog speaks or barks and when he is silent.

(A). Keep a watch on your dog's behavior, but make sure to remain fairly quiet. It is more difficult to instruct your dog to " speak " when it is very quiet and closed off than it is to push it to do what it is supposed to.
(B). You can use the stop command backwards, like this: " halt or be silent ". As soon as your dog toots the stop, you want him or her to stop barking.
(C). Clapping your hands loudly will only make your dog return to his quiet mode and ultimately cause him to bark again. Shouting will also not give you much control over how loud and effective your command is, though.
(D). Practice this command in a quiet place in your home with no distractions. Put a few treats in your pocket so they are on hand during the training session.
The answer is:
(D).