I'm pretty sure that the answer to this question is letter A.
Answer:
A native of Hampton, Virginia, she graduated from Hampton Institute in 1942 with a dual degree in Math and Physical Sciences, and accepted a job as a math teacher at a black school in Calvert County, Maryland.
Explanation:
During the Han Dynasty, trade flourished in China. The government controlled the economy, and Han rulers emphasized unity in laws and currency.
Poland, romania, east germany
