It seems like B is the most likely answer, considering it's really the only one that applies to democracy.
Increased weaponry and military spending
Positive: <span>faster and safer transportation from coast to coast, larger amount of goods ship faster, cheaper for travel, and helped unpopulated areas get settled easier
Negative: Buffalo were killed in large numbers, Natives lost their land, and brought a lot of western settlers take over native lands.</span>
The Bill of Rights.
In order for compromise.