If supply of a product increases and demand for the product decreases, equilibrium quantity will definitely change

When the federal government installs a price support program that requires the government to purchase all of a good not bought in the private economy at the support price, changes in producer surplus

A) are negative. B) are positive, but more than offset by the cost to consumers and the government. C) are positive, and not offset by the cost to consumers and the government. D) and consumer surplus are both positive.

Suppose the market for tortillas is initially in equilibrium, but then the equilibrium wage rate and the equilibrium quantity of labor both increased. What happened in the market for tortilla?

A) The demand for tortillas increased. B) The demand for tortillas decreased. C) The supply for tortillas increased. D) The supply for tortillas decreased.