At equilibrium,each of these is true except

A) quantity demanded equals quantity supplied.
B) the price has no tendency to change.
C) market price equals equilibrium price.
D) there may be a shortage or a surplus.

Equilibrium

The state in which market supply and demand balance each other, and as a result, prices become stable.

Shortage

A situation in which the demand for a product or service exceeds the available supply, often leading to higher prices or unmet demand in the market.

Surplus

A situation where the quantity supplied of a good exceeds the quantity demanded at the current price, often leading to a decrease in prices.