The Nubian kingdom existed along the north eastern part of the Nile river and it is located in present day Sudan and Southern Egypt. Historians claimed that it is one of the most ancient civilizations in the world whose origin can be traced back to 2000 BC.
Nubia was previously known as Kush kingdom. The word Nubia became instrumental in being included in the etymology for the word Ethiopia. However this civilization is not as old as the Egyptian civilization.
The correct option is B. When Dennis Chavez became senator of the United States, he introduced many civil rights policies like the Fair Employment Practice, which aim was to end discrimination in the workplace.