Principal-Agent Problems,slack,and Drift Are Most Associated with Which of the Following

Principal-agent problems,slack,and drift are most associated with which of the following statements?

A) Bureaucrats' interests may not coincide with those of the president or Congress.
B) Bureaucrats often lack discretion when implementing policies.
C) Bureaucrats usually follow the wishes of the president and Congress.
D) Bureaucrats lack the necessary expertise to implement policy.
E) Legislation is usually very specific on how policies should be implemented.