There Are Often Wide Differences Between the Productivity Levels of Different

There are often wide differences between the productivity levels of different factories making the same products because

A) patent protections limit the benefits of innovation to the firm responsible for the innovation.
B) some companies are more willing to take the risk of adopting a new technology than are others.
C) the intensity of competition varies from industry to industry.
D) some factories are located in innovation clusters and others are not.