I'd have to say the first one is B, the second one I'm not completely sure about but I'd have to choose between A or C. I'll do some quick research and get back to you.
Nicene Christianity became the state church of the Roman Empire with the Edict of Thessalonica in 323 AD, when Emperor Theodosius I made it the Empire's sole authorized religion.
1. increasing trade
2. finding gold and precious metals
3. competing with Spain to be the dominant power in Europe.
after reconstruction, the african americans rights that they gained after the civil war were taken away. black codes, by the southerners, were laws that tried to take away the african american's rights as much as possible. the kkk was a group that terrorized some poor white males and african american families. they killed and tortured the families.