A rat in a Skinner box spends 50 percent of its time pressing for sucrose pellets and 50 percent of its time pressing for food pellets. The rat is then fed all the food it can eat in its home cage. When it returns to the Skinner box, it spends 50 percent of its time pressing for sucrose, only 20 percent of its time pressing the food-pellet lever, and 30 percent of the time chewing the bars in the bottom of the cage. This result can be explained by Group of answer choices The matching law Hull's theory of drive reduction Behavioral economics Multiple chained schedules of reinforcement