What phrase best defines the holocaust?

Why did roosevelt support a europe first strategy even though it had been japan that had first attacked the us

1. the fifteenth amendment guaranteed for all us citizens, regardless of "previous condition of servitude." freedom citizenship voting rights religious tolerance 2. which group was still not allowed to vote following passage of this amendment? women poor men rich men former slaves 3. the fifteenth amendment was the last of the amendments. carpetbagger lincoln reconstruction scalawag

Which statement is the best summary of this passage?