If Consumers Often Purchase Muffins to Eat While They Drink

If consumers often purchase muffins to eat while they drink their lattés at local coffee shops,what would happen to the equilibrium price and quantity of lattés if the price of muffins rises?

A) Both the equilibrium price and quantity would increase.
B) Both the equilibrium price and quantity would decrease.
C) The equilibrium price would increase,and the equilibrium quantity would decrease.
D) The equilibrium price would decrease,and the equilibrium quantity would increase.