Which of the following statements about supply and demand are TRUE? ( )

A、The quantity supplied of any good or service is the amount that sellers are willing and able to sell.
B、Equilibrium price is the price at which the amount producers are willing to supply is equal to the amount consumers are willing to buy.
C、Buyers and sellers both want to move the markets toward the equilibrium of supply and demand.
D、If the market price is above the equilibrium price, suppliers should raise the price.