Answer :
Answer: B
Explanation:
Black citizens of the US gained the right to vote in 1870, in which, Congress passed the last of the three so-called Reconstruction Amendments, the 15th Amendment, which stated that voting rights could not be “denied or abridged by the United States or by any state on account of race, color, or previous condition of servitude.”
Answer:
C. The United States Congress declared the Black Codes unconstitutional.
Explanation:
The Only thing that is false.