Which of the Following Describes the Competitive Advantage of McDonald's

Which of the following describes the competitive advantage of McDonald's?

A) providing customers with a good value that meets their expectations
B) having a strong brand name with very high levels of awareness and favorable brand associations
C) having a large number of great locations
D) reducing customers' waiting time by developing a system for producing its food and using extensive training for its employees
E) All of the above.