Answer:
b. The equilibrium price would increase, and the equilibrium quantity would decrease.
Step-by-step explanation:
As the cost of production rises, that also means that the equilibrium price should rise as well because the cost is one of the principal factors to take into account the pricing of products, now that the cost increased, the amount of lattes that need to be sold in order to find the equilibirum point is less, that means that the equilibriu quantity will decrease.