Answer:
B) If the firm does not exit the industry in the long run its demand curve will shift to the left.
Explanation:
This is because the statement "If the firm does not exit the industry in the long run its demand curve will shift to the left, " simply means that if the monopolistic competitive firm stays in a particular industry for long, the firm will experience a situation in which less of the good or service is demanded at every price.
However, this cannot be true because a monopolistic competitive firm produces unique products that tend to have its specific customers. These customers, in the long run, will demand more goods and services of the firms which will be affected positively by a lot of reasons including prices of related goods, increase in salary, better economy at large, etc.
