The city you are looking for is Beijing
The economical boost of selling of cotton lead to the cotton gin being created during this period of time. Unfortunately, more cotton being produced meant more slaves being needed.
i believe that the answer is letter B!
Bicameral system, a system of government in which the legislature comprises two houses. The modern bicameral system dates back to the beginnings of constitutional government in 17th-century England and to the later 18th century on the continent of Europe and in the United States.