Which of the following was used to prevent African American men from voting in the late 1800s? O tenant contracts
O labor contracts
O grandfather clauses
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I believe the answer is grandfather clauses

Explanation:

Explanation:

The Fifteenth Amendment (Amendment XV) to the United States Constitution prohibits the federal government and each state from denying a citizen the right to vote based on that citizen's "race, color, or previous condition of servitude." It was ratified on February 3, 1870, as the third and last of the Reconstruction

europe would not recognize the confederacy as an independent nation.

first second and third

explanation: