Answer:
Congress passed the 13 amendment to the Constitution,constitution,outlawing slavery,before the civil war had ended to protect black voting g rights,Congress passed the 15 amendment.the 15 amendment,however did not outlaw literacy tests,poll taxes and other methods that might prevent poor blacks and whites from voting
Im writing this to finish a challenge
<span>D. Slavs and Vikings</span>
C is the best answer but all are right