Why Is the Power of the Purse an Important Check

Why is the power of the purse an important check for Congress to have over the other two branches?

A) Congress can balance the federal budget without interference from the other two branches.
B) By cutting out wasteful spending by the executive branch, Congress can reallocate funds for more important priorities such as national security.
C) As the most representative branch, Congress should have more powers than the other two branches.
D) By freezing judges' salaries or cutting funding for federal agencies, Congress can then give the money directly to the states.
E) By freezing judges' salaries or cutting funding for federal agencies, Congress can state its displeasure with the actions of the other branches and can maintain oversight of how policies are implemented.