In General, Congressional Oversight of the Executive Branch

In general, congressional oversight of the executive branch

A) is strong, as the Supreme Court has affirmed the legislature's authority to exercise such powers as the legislative veto.
B) has long since been accepted as a congressional power even though it is not enumerated.
C) is strong because it is a power enumerated by the Constitution.
D) is weak, because Congress has no power over the budget of executive agencies.
E) is weak, because Congress has no recognized authority to change executive agency regulations.