There is a lot there is websites specifically for historical facts if you want to look at those
A city state is a city that is its own independent country.
Answer:
"Attacking radical abolitionists to boost his credibility with moderate southerners, Webster urged northerners to respect slavery in the South and to assist in the return of fugitive slaves to their owners. He joined Clay in warning that the Union could never be dismembered peacefully." -
Explanation:
Mayan religion was characterized by the worship of nature gods ( especially the gods of sun, rain and corn )
So I would say B , crops.