A.) our government is a republic with senators
First question! It's was the main point of the war.
English settlers main hope was to gain land in the new world that they could use for farming. This would enable them to make money from selling crops. They would then pass the land to their sons keeping the family prosperous.
There were other settlers that left to escape persecution (mostly religious persecution).
Your answer would be to communicate to the public through the mass media.