A Competitive Market Is in Equilibrium

Multiple Choice

A competitive market is in equilibrium.Then there is an increase in demand and an increase in supply.The equilibrium price ________,and the equilibrium quantity ________.

A) rises; increases
B) perhaps changes but we can't say if it rises, falls, or stays the same; does not change
C) falls; increases
D) perhaps changes but we can't say if it rises, falls, or stays the same; increases
E) falls; perhaps changes but we can't say if it increases, decreases, or stays the same