Which of the Following Statements Describes a Disadvantage of the Product

Which of the following statements describes a disadvantage of the product manager system?

A) Product managers are strong advocates for their assigned product.
B) Product managers tend to remain in the same position for an extended period of time.
C) Even though product managers have major responsibilities, they have relatively little direct authority.
D) Product managers are considered line personnel and therefore have little control over decision making.