Poll taxes, literacy tests and threatened violence were all measures that existed in Southern states in order to undermine the content of A) the 15th Amendment. This was due to the South having a hard time coming to terms with the fact that they were obligated to give African-Americans equal voting rights. The above were both harsha and offensive tactics used against former slaves, so that they were unable to vote.
To be honest I think answer is two
On January 8, 1912 the African national congress was founded byFounders: John Langalibalele Dube, Pixley ka Isaka seme, Sol Plaatje.
The U.S. entered World War I because Germany embarked on a deadly gamble. Germany sank many American merchant ships around the British Isles which prompted the American entry into the war.