How did the enforcement acts try to protect citizens?
a. they made it a federal crime to interfere with a citizen's right to vote.
b. it stated that anyone who tried to prevent voting from taking place would be fined.
c. voting places populated by african americans were manned by local militia.
d. anyone who terrorized african americans at voting places was arrested by local law enforcement and fined.

C. Voting places populated by African Americans were manned by local militia.

Explanation:

The Enforcement Acts were three bills passed by the United States Congress between 1870 and 1871. They were criminal codes which protected African-Americans' right to vote, to hold office, to serve on juries, and receive equal protection of laws.

since most of current immigration into the u.s., both legal and illegal, is coming from latin america. it would be very difficult to imagine or rationalize a country my fellow citizens are trying desperately to flee into, would pose a threat to my prosperity or freedom. since the u.s. has a long history of intervention, but no record of permanent occupation, i would not feel oppression is the main objective.  

the largest free trade nation, along with the largest gdp in the world wanting to expand it's economic policy on us, and including us, could only be positive. the u.s. government has no interest in, or way of simply forcing american culture on us. and has no track record of it. other nations that adopted american social culture, or "americanization" did so voluntarily, mainly through the choice of allowing american businesses and u.s. citizens to come into their nations, as free operatives.