The Germanic tribes were much more culturally set back than the romans in things like buildings, writing, and art. The Germanic tribes were mainly nomadic so they never settled down to build magnificent buildings such as the Colosseum. The Romans at one point switched over to christian religion and the Germanic tribes were pagan, so after the Roman Empire collapsed, Christianity almost died out in most of Europe.
Confederation was chosen by congress because they the felt the need for a strong union and a government powerful enough to defeat Great Britain.
The diaspora was the dispersion of jews among the gentiles after the babylonain Exile
I belive that answer is c