assume milk is used to produce ice cream. ceteris paribus, a decrease in the price of milk will cause: group of answer choices the equilibrium price of ice cream to increase and the equilibrium quantity of ice cream to increase. the equilibrium price of ice cream to increase and the equilibrium quantity of ice cream to decrease. the equilibrium price of ice cream to decrease and the equilibrium quantity of ice cream to increase. the equilibrium price of ice cream to decrease and the equilibrium quantity of ice cream to decrease.