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a. It became communist.</span>
It would be "administrative" law that is is based on rules, orders, and regulations made by federal, state, and local executive officers, since there is no binding constitution in place in this instance.
The correct answer is distrust of the federal government among American Indians.
The federal government and several groups of American Indians had negative relationships throughout the 19th and 20th century. The federal government has forced different groups to leave their native lands (like the Cherokee during the Indian Removal Act). Along with this, there were several military encounters between the two (like Custer's Last Stand).
The federal government and their constant encroachment on Native American land and the promises broken by the government continue to haunt the relationship between these two groups.
The group of people which built Great Zimbabwe, a wealthy and powerful trading town were the b) Shona. Great Zimbabwe was used as the seat of the monarch and where the government would have been and was built during the country's Late Iron Age. The walls enclosing the city were very high, but eventually the city was abandoned and fell into ruin. The Shona people are a group of Bantu people in Zimbabwe, who also live in Zambia, Botswana and South Africa.