Question

"Every Bill which shall have passed the House of Representatives and the Senate, shall, before it become a Law, be presented to the President of the United States: If he approve he shall sign it, but if not he shall return it, with his Objections to that House in which it shall have originated..."—U.S. Constitution
This quote directly reflects the principle of
A.) federalism
B.) democracy
C.) popular sovereignty
D.) checks and balances