It is A because each state receives electoral votes by the amount of members from that state in the House of Representatives
Well of course it happens to be good for our society due to it helping people adjust. Hell yeah :)
The correct answer is rapid industrialization
Those who had the wealth to enter the business got even more wealthy because they could exploit a system that wasn't yet monitored or regulated because it was new. Those who were simple workers became even poorer because their labor was being exploited by monopolies and cartels made by the wealthy businessmen.