All of the Following Are True About the Separation of Powers

All of the following are true about the separation of powers EXCEPT

A) it grants each branch of government independent powers so that no one branch can permanently dominate the others.
B) it helps make the policy-making and governing process in the United States inefficient.
C) it can be seen in the power of the president to veto a law and by Congress' power to override a presidential veto.
D) it prevents any one branch of government from carrying out its responsibilities without the cooperation of the other branches.
E) it is seen in the ability of the federal government and states to limit each other.