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(A) Though trained to be obedient, they are also taught that sometimes they must disobey the owner’s command.
(B) This is to get it exposed and accustomed to all kinds of situations it may encounter in the future.
(C) Efforts are made to build mutual understanding and to avoid any misbehavior that might be devastating.
(D) The size, weight, preference, and nature of both are taken into account for a good match.