U.S.companies That Participate in the Manufacturing Sector

U.S.companies that participate in the manufacturing sector:

A) depend on government imposed tariffs on foreign goods to remain competitive.
B) are growing much more rapidly than firms in the service sector.
C) have focused on innovative operations management techniques in order to regain their competitive edge.
D) have become increasingly reliant on mass production techniques as they put more emphasis on keeping costs as low as possible.