The Office of Management and Budget Does Which of the Following

The Office of Management and Budget does which of the following?

A) It helps the president develop a budget proposal and oversees federal spending.
B) It coordinates executive-judicial relations.
C) It hires private contractors for all other executive agencies.
D) It coordinates with governors who share the president's party to ensure fiscally healthy state governments.
E) It enforces the constitutional mandate for a balanced federal budget.