In the 1920's and 1930's gained popular support was by appealing national pride. So it’s C hope it helps :D
Federalism is a mixed form of government in which power is shared, ideally equally, between a central (federal) government and region (state) governments.
Federalism generally reduced the rights of the states, since they became actors within a federal system and limited in their powers, rather than operating as their own distinct entities.
Scared people to not read it
They were a exciting discovery because it gave them a glimpse at what prehistoric life was like.