What would happen to the equilibrium price and quantity of latte´s if coffee shops began using a machine that reduced the amount of labor necessary to produce steamed milk, which is used to make latte´s, and scientists discovered that latte´s cause heart attacks?

a. Both the equilibrium price and quantity would increase.

b. Both the equilibrium price and quantity would decrease.

c. The equilibrium price would decrease, and the effect on equilibrium quantity would be ambiguous.

d. The equilibrium quantity would decrease, and the effect on equilibrium price would be ambiguous.