It is certain that the equilibrium price will fall when:

A) the supply curve and the demand curve both shift to the right.
B) the supply curve shifts to the right and the demand curve shifts to the left.
C) supply and demand both increase.
D) supply decreases and demand stays the same.

Equilibrium Price

The cost at which consumer demand for a product matches the amount producers are willing to supply, resulting in a stable market.

Supply Curve

A graph showing the relationship between the price of a good and the quantity supplied, with price on the vertical axis and quantity on the horizontal axis.