The superlative adjective is <span>C. Longest</span>
I think the answer would be D
Transcendentalism was a philosophical movement that was developing by the late 1820s and '30s in the Eastern region of the United States as a protest against the general state of intellectualism and spirituality. The doctrine of the Unitarian church as taught at Harvard Divinity School was of particular concern.
Well it could be A or C 'cause brainstorming is really good but also is asking your friends about what they would enjoy in a paper. But with that said, I would go with C.