Why Are Negotiated Commission Structures Becoming More Common

Why are negotiated commission structures becoming more common?

A) to keep from paying the traditional 25 percent commission system
B) to ensure that agencies do not make too much money
C) to consider the needs of clients as well as the amount of time and effort the agency spends on an account
D) to encourage agencies to cut back on buying network TV for their clients
E) to support the creation of a transactional relationship between agency and client