B. At equilibrium, quantity demanded equals quantity supplied. A. At equilibrium, demand equals supply. 9. Which of the following is the correct way

B. At equilibrium, quantity demanded equals quantity supplied. A. At equilibrium, demand equals supply. 9. Which of the following is the correct way to describe equilibrium in a market? A. At equilibrium, demand equals supply. B. At equilibrium, quantity demanded equals quantity supplied. C. At equilibrium, market forces are no longer at work. D. Equilibrium is a tendency, a state of perpetual motion. E. Equilibrium is the best combination of price and quantity. 10. Why do price ceilings tend to cause persistent imbalances in the market? A. Quantity demanded exceeds quantity supplied but price cannot rise to remove the shortage. B. Quantity demanded exceeds quantity supplied but price cannot fall to remove the surplus. C. Quantity supplied exceeds quantity demanded but price cannot rise to remove the shortage. D. Quantity supplied exceeds quantity demanded but price cannot fall to remove the surplus. A. persistent surpluses b. problems of disposal of goods c. disguised dis