Account Planning Has Become a Very Important and Demanding Function

Account planning has become a very important and demanding function in many agencies because:

A) it facilitates organizations in reducing the number of effective communication channels.
B) it enables organizations with a centralized management to reduce costs.
C) it provides greater value to the final consumer.
D) it provides the creative team with more insight into consumers.
E) it has replaced brand management as the primary marketing function.