In His Article "The Nature of the Firm," Ronald Coase

In his article "The Nature of the Firm," Ronald Coase _____

A) suggests that monopolies may be more innovative than competitive firms.
B) argues that the economy should be organized into one large firm.
C) provides an answer to the question "Why do firms exist?"
D) focuses on the concept of adverse selection.
E) analyzes market concentration in some U.S. industries.