Which of the following statements is true?

a. monopolists are price makers. all other firms are price takers.
b. unlike other industries, monopoly industries have high barriers to entry.
c. only monopoly firms are granted patents and copyrights.
d. unlike other firms, a monopolist's demand curve is the same as the market demand curve.

The correct answer is option d.

Explanation:

A monopoly is a market structure where there is a single firm in the market with no close substitutes. The firm is a price maker. There is high barriers to entry in the market.

Similar to monopoly other imperfect competition such as monopolistic competition and oligopoly also have barriers to entry, and are price makers. But the firms in such markets have different  demand curve than the market demand curve.

But in a monopoly there is only single firm, so the market demand curve is the same as  individual firm's demand curve.

answer; the nav calculated at the market close at 4: 00 pm new york time;