•poll tax •literacy test
•grandfather clause
What do the three things on the list have in common?
A They all made it difficult or impossible for African American men to vote
B They all want into effect before Civil War ended
C They were all put in place by the Freedman’s Bureau
D They were all approved by the federal government

A They all made it difficult or impossible for African American men to vote

Explanation:

•poll tax

This law require voters to pay a certain amount of money before they can cast out their vote. Since many African American live in extreme poverty at that time, this made large portion of African American unable to vote.

•literacy test

Literacy test requires potential voters to pass a reading test before they're considered to be eligible to vote. At that time, many African American couldn't afford to receive proper education and large portion of them weren't eligible to vote because of it.

•grandfather clause

The grandfather clause was an extension of the literacy test. It allows  all the people who owned the right to vote before 1867 to be able to vote even without passing the literacy test. (African Americans was still enslaved and did not have the right at that time).

This clause was specifically made to allow illiterate white citizens to vote while specifically excluding African Americans.

b) to encourage free trade

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail