How does the 19th Amendment contribute to the expansion of Civil Rights in the United States? A. It officially ends slavery.
B. It removes gender-based barriers to voting rights.
C. It opens the selection of Senators to more voters.
D. It protects the right of African-American men to vote.

D. It protects the right of African-American men to vote.

Explanation:

The 19th Amendment contributes to the expansion of Civil Rights in the United States by protecting the rights of African-American men to vote. Hence, option (D) is the correct answer.

according to classical republican political theory, which democratic republics would function best?

a.   small republics, with people who had similar interests

b.   large republics, with people who had competing interests

c.   republics made up entirely of landowners

d.   republics made up entirely of servants