The rapid shift in culture through urbanization, mechanization, and industrialization, led many Americans to: O A. Leave America to find new land
B. Open up businesses to gain from the huge economic growth
C. Ignore social problems and focus on economic prosperity
D. Re-evaluate various social and political systems
Reset Selection

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

all of the

powerful warriors rose to become chiefs, who had a privileged place in society.