When It Comes to the Actions of Bureaucracy, Which Statement

When it comes to the actions of bureaucracy, which statement is accurate?

A) Presidents do not necessarily want the bureaucracy to perform its mandated functions efficiently; rather, they want the bureaucracy to perform the functions that matter most to them.
B) Presidents always support the efficient performance of the bureaucracy's mandated functions, even those actions that do not advance their policy preferences.
C) Presidents will always seek to reorganize an agency that is not performing the functions that matter the most to them, and they will always call for an investigation into agencies that underperform in their mandated functions.
D) Presidents have no control over whether an agency is performing its mandated functions efficiently; rather, they rely on their allies in Congress to pressure agency heads to perform the functions that matter most to them.