I think its C.Helped end segregation by restaurants near public colleges
The political, social and cultural changes that took place in Rome during the early empires was that there were indeed a lot of new buildings and temples, many of which were made of marble and indeed it was aso the case that there were duties to pay taxes and serve in the army for citizens; so a and d.
The Bessemer Process was wildly important because it represented the first relatively affordable way to manufacture steel. This was in turn greatly important because it helped speed up the process of industrialization around the world--leading to better living conditions for all.
I don't see a map, but you would pick a place with a lot of water (or a river), plants, and farmland (or silt)