How many countries in sub-Saharan Africa are considered to have high levels of development?

A. None
B. One
C. Five
D. More than ten

Please select the best answer from the choices provided.

Why did some states believe they had the power to overturn federal laws?

To what extent did mary lease's concepts of justice, freedom, and equality agree with those of samuel gompers and emilio aguinaldo? how did they compare with those of the pinkertons at homestead?

What is the relation between the hover dam and the gold rush