In Addition to Holding Committee Hearings and Revising Laws That

In addition to holding committee hearings and revising laws that delegate authority, what is one of the tactics Congress uses to oversee the exercise of delegated power to the executive branch?

A) reduce the salaries of employees from deviant agencies
B) direct Congress's Inspector General to subpoena the records of suspicious agencies
C) hold national referendums on proposed regulations
D) control the budget of executive branch agencies
E) fire leaders of executive branch agencies who had been appointed by the president