What was transcendentalism?

B or D, read below and try and get it, I ruled out the others. Sorry.

Explanation:

Transcendentalism is a political movement that originated in the eastern United States in the late 1820s and 1830s.  The notion of a personal interpretation of God was advocated by transcendentalists, claiming that no medium was required for divine knowledge. They adopted idealism, focused on nature and rejected materialism. The notion of a personal interpretation of God was advocated by transcendentalists, claiming that no medium was required for divine knowledge. They adopted idealism, focused on nature and rejected materialism.

the answer wold be b) travel among nations should be regulated by an international organization

the us constitution is a living document, meaning that it can be changed over time as the country changes.