Suppose that many cities begin to pass taxes on carbonated sodas, while at the same time scientists discover a cure for citrus greening, which is reducing orange crops in Florida and Brazil. Use a demand and supply graph to illustrate your answers to the following questions.

a. Can we use this information to be certain whether the equilibrium price of orange juice will increase or decrease?

b. Can we use this information to be certain whether the equilibrium quantity of orange juice will increase or decrease?