Consider the influences on selling​ plans, and whether the influence changes supply. A. A change in the quantity of rubber balls that consumers plan to buy this month changes the supply of rubber balls. B. A change in the wage rate of the workers who produce rubber balls changes the quantity supplied of rubber balls. C. An increase in the number of buyers of rubber balls changes the supply of rubber balls. D. A change in the price of rubber balls changes the quantity supplied of rubber balls.