To push for expanded voting rights for African Americans
The correct answer should be A. Oligopoly
It is a state of market where the entire market is lead by a few owners of production factories or sellers. This wasn't a result of the new market structures in the late 1800s.
Maasai. Age: over 3,000 years old. ...
Berbers. Age: over 10,000 years old. ...
Sandawe. Age: over 87,000 years old. ...
African Pygmies. Age: over 100,000. ...
Hadza. Age: over 100,000 years old. ...
Nama. Age: 100,000 – 140,000. ...
San (Bushmen)
The name for this idea is "Domino Effect" - this is a theory that says that if one country falls to Communism the neighboring countries would also fall to Communism, much like pieces of Dominos fall when a neighboring piece fell.
This theory was important in the Foreign politics of the US during the cold war.