The search for was devastating for indigenous populations. a. slaves b. la fuente de la juventud c. atlantis d. el dorado

I would assume it's El dorado. There wasn't much search for slaves, B is the fountain of youth and that was supposedly found very soon upon Ponce De Leon's landing in florida so not much search, and there is no native population of people in the middle of the ocean. I could be wrong but all the evidence points towards A. El Dorado

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

the real answer is b