If a firm in a purely competitive industry is confronted with an equilibrium price of $5,its marginal revenue:

A) may be either greater or less than $5.
B) will also be $5.
C) will be less than $5.
D) will be greater than $5.

Equilibrium Price

The price at which the quantity of a good or service demanded by consumers is equal to the quantity supplied by producers, leading to a market balance.

Marginal Revenue

The extra profit made by selling an extra unit of a product or service.