Why Is the Comptroller of Public Accounts So Important to the Legislature

Why is the comptroller of public accounts so important to the legislature?

A) The comptroller is responsible for setting the salary and compensation packages for legislators.
B) The comptroller informs the legislature how much money it has to spend on the budget.
C) The comptroller investigates suspected illegal campaign contributions.
D) Whoever is comptroller is also the Speaker of the House.
E) The comptroller has to certify the budget for every agency before the budget can be passed.