4x French political thinker Baron de Montesquieu (1689-1755) was one of the Enlightenment's most important thinkers. He is famous for saying that the [law making] and [law enforcement] powers are united in the same person. __ there can be no liberty." To which principle of government is Montesquieu's statement MOST directly related? A Bill of Rights B Individual Rights C Popular Sovereignty D Separation of Powers