hai luv, I learned that the coma is behind the starting thing. Sorry, that's not the best explanation but this is what I found is correct. "Back in those days, white people and colored people were separated for everything they did in life and were treated differently because of the color of their skin."
It was difficult for women to get rights especially for voting because men were often viewed as superior against women and smarter. Often times in the past women weren't even allowed to go to school after a while. It is still that way in some countries. This probably didn't help much but if I could get the passage I could be more helpful.
I would say B or A, because Bus Drivers Doesn't Make sense, Plus
"Dr" must mean he has a profession. Meaning He could be a teacher and or a Doctor. Making him have "Dr."