This government body supported native american sovereignty but it did not do any good.

Tribal sovereignty in the United States is the concept of the inherent authority of indigenous tribes to govern themselves within the borders of the United States. Currently, 573 sovereign tribal nations (variously called tribes, nations, bands, pueblos, communities, and Native villages) have a formal nation-to-nation relationship with the US government. These tribal governments are legally defined as “federally recognized tribes.” Two-hundred-and-twenty-nine of these tribal nations are located in Alaska; the remaining tribes are located in 35 other states. In total, tribal governments exercise jurisdiction over lands that would make Indian Country the fourth largest state in the nation.

i would say your answer is a)

sorry if im wrong

nationalization is the set of dispositions and operations by means of which the state assumes, in varied form, the administration of private companies, of groups of companies or of the totality of certain economic sectors previously managed by individuals, such as the land portions. nationalization is the opposite of privatization. it is also called nationalization of the means of production, although a nationalized company can be previously both national and foreign ownership. nationalization or nationalization is a very characteristic action of ideologies such as socialism and nationalism.