The answer is c. Election of 1860 Lincoln
Well because many saw him as a man sent by god to rule, that's why they let the royal family lead for the longest time. They thought the dynasty was sent by god himself, and they were given his wisdom. Or something like that, I got this info out of "Five Equations that Changed the World" which has a bit about Newton's life and what he thought of the matter.
I would have to say D or A but if I had to chose I would say D
The Panama Canal created a major economic boost for the united states because it allowed for a much shorter shipping route to Asia/Europe, and of course was a military/security advantage because it allowed for faster troop movements.
Im pretty sure it is B but im not sure. Hope it helped
