Which of the following correctly labels the supply and demand graph above?
(A. Supply, B. Quantity, C. Equilibrium, D. Demand)
(A. Supply, B. Demand, C. Equilibrium, D. Quantity)
(A. Quantity, B. Demand, C. Supply, D. Equilibrium )
(A. Demand, B. Supply, C. Equilibrium, D. Quantity)