Which of the Following Statements Is True About Superagencies

Which of the following statements is true about superagencies?

A) They were formed when large advertisement agencies were broken down into smaller, more specialized agencies.
B) Advertisers who became disenchanted with the superagencies, moved to smaller agencies that were flexible and more responsive.
C) They were formed so that agencies could provide clients with effective supply chain management.
D) Advertisers who generally worked with superagencies converted them into in-house agencies to gain greater flexibility and objectivity.
E) They were formed so that agencies could provide clients with just-in-time inventory management systems.