Concept:Patents and copyrights grant exclusive legal rights that create barriers to market entry.
Explanation:Patents protect new inventions, such as computers or phones, from being made or sold by others without permission.
Copyrights protect creative works, such as music and movies, from unauthorized copying or use.
Together, they give a monopolist sole control over a protected product or idea.
This stops rival firms from producing or selling the same product legally.
By doing so, patents and copyrights prevent new firms from entering the market.
They do not directly determine product quality, product scale, or restrict information flow.
Answer:D. restrict entry of new firms.