Answer:
Emmett till is a 14 year old African American that was lynched in 1955.
Explanation:
Emmett was accused of offending a white woman in a grocery store in mississippi, as a result the womans husband abducted Emmett and mutilated him and dumped him into a river. His death drew attention to the mistreatment of African Americans.
The answer to your question is B: It explains the organization of the federal government.
Secondary sources is the right one