Answer:
The correct answer is option c.
Explanation:
A price ceiling shows the maximum price that a firm or supplier ca charge for its product in the market. The government generally imposes price ceilings to keep necessities affordable for the common people. A binding price ceiling is a situation where the price ceiling is fixed below the market equilibrium price.
At the binding price, there is excess demand. This is because at a lower price the consumers will demand more but the producers will supply less, because of the law of demand and law of supply.
In this situation, a black market emerges because the firms or sellers want to sell their high-quality goods at a higher price than that fixed by the government.