Assume a constant-cost industry that is initially in long-run competitive equilibrium. An increase in demand will cause a(n) in prices and profits, and as a result, firms will the industry, causing the market supply curve to shift , which, in turn, will eventually cause the equilibrium price to be before.

a. decrease; exit; leftward; lower than
b. increase; enter; rightward; higher than
c. decrease; exit; rightward; higher than
d. increase; enter; rightward; the same as
e. increase; exit; leftward; lower than