Which of the Following Is an Statement About Integrated Marketing

Which of the following is an statement about integrated marketing communications firms?

A) IMC often results in greater economies of scale.
B) An agency that has all marketing operations in-house is usually perceived as best in breed.
C) Having one agency in control of the entire IMC process achieves greater synergy among each of the communications program elements.
D) One challenge to IMC is a lack of people with the requisite broad perspective and skills to make it work.
E) IMC agencies make it convenient for the client to coordinate all of its marketing efforts through one agency.