Answer:
Fifteen amendment.
Step-by-step explanation:
The laws which helps in preventing racial discrimination are the legislation for racial discrimination. Each and every country has made their own laws about racial discrimination. In United states of America, fifteen amendment is responsible preventing racial discrimination. The Fifteenth Amendment of United States Constitution forbids the federal government and state from denying of giving citizen the right to vote based on that citizen's race, color, or previous condition of servitude.