The statement that most accurately reflects the inclusion of Enlightenment ideas in the U.S. Constitution is:
Montesquieu’s ideas about separation of power are included.
Montesquieu advocated for the separation of powers into different branches of government to prevent any one branch from becoming too powerful, a principle that is foundational to the structure of the U.S. government as established in the Constitution.
The other options either misattribute ideas (like Hobbes’s natural rights, which are more closely associated with Locke) or are not directly reflected in the Constitution (like Voltaire's ideas about property). Henry's ideas about taxation and representation are important but are better known in the context of revolutionary sentiment than as formal principles in the Constitution.