If there isn't a fourth choice then i believe the correct answer would be "b" a governor cause a president has authority over everything and a mayor is mostly pinned to a town or city.
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The correct answer is agriculture. It was made possible for people to live on a single piece of land and not be nomadic anymore in search of food. Agriculture enabled them to settle around river valleys like Nile or Tigris and Euphrates. This is the era when civilizations started rising worldwide.
The first one A.) East Indies
To re word it copy and paste and change the words a bit like in stead of " they interacted" say they synergy
The Rwandan Civil War was between the Hutu's and the Tutsi's.
The Hutu's made up a large majority of the population. However, a Hutu Manifesto published in the middle of the 20th century claimed that the minority group of the country (the Tutsis) were manipulating and controlling the government. Essentially, they were blaming the Tutsi for the problems in Rwanda. This helped lead to the Rwandan Civil War and the Rwandan genocide.
