The correct option is C.
Border ruffians was the name given to pro slavery activists who went to the state of Kansas from the state of Missouri in order to force the acceptance of slavery in Kansas. They were armed and they interfere in territorial elections in order to enhance the election of a pro slavery politicians. This happened in USA between 1854 and 1860.
A not accurate description of Benjamin Banneker would be that he was the first black man to be named a cabinet secretary" is not an accurate description of Benjamin Banneker. Banneker was an impressive and self-taught individual who corresponded with Jefferson and was fascinated with the world around him.
The United States was willing to pay more per mile for the Gadsden Purchase than for the Mexican Cession because the Gadsden Purchase gave money to the United States to build a railroad.
In order to serve as a member in either chamber of the General Assembly, a person must be a U.S. citizen, at least 21 years of age, and for the two years preceding their election or appointment a resident of the district which they represent.