The Product-Management Organization Has a Number of Disadvantages,including ________

The product-management organization has a number of disadvantages,including ________.

A) product and brand managers may lack enough authority to carry out their responsibilities
B) short-term involvement leads to short-term planning and fails to build long-term brand strengths
C) fragmentation of markets makes it harder to develop a national strategy
D) product and brand managers become experts in their product area but rarely achieve functional expertise
E) all of the above