Problem: June and Ward want their children, Wally and the Beaver, to clean up their room. They decide to use the technique of negative reinforcement. This means that they should A. spit on the children whenever they make a mess in their room. B. excuse the children from a daily chore they dislike whenever they clean up their room. C. give the children ice cream treats if they clean up their room. D. explain to the children the benefits of cleanliness.