"All legislative powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives."- Section I of Article I of the United States Constitution

"The President shall be commander in chief of the Army and Navy of the United States, and of the militia of the several states, when called into the actual service of the United States... He shall from time to time give to the Congress information of the state of the union, and recommend to their consideration such measures as he shall judge necessary and expedient...." - from Section II & II of Article II of the United States Constitution

"The judicial power of the United States, shall be vested in one Supreme Court, and in such inferior courts as the Congress may from time to time ordain and establish...." - from Section I of Article III of the United States Constitution

These passages from the Constitution are important because they

A) create checks and balances.

B) establish a separation of powers.

C) represent the principle of federalism.

D) reflect the principle of popular sovereignty.