B. it involved multiple countries in alliances with eachother
The answer is a, he miscalculated, since the Americas hadn't been discovered by europeans (the native americans were there first) they did not account for america in their calculations
In the United States, examples of the concurrent powers shared by both the federal and state governments include the power to tax, build roads, establish bankruptcy laws, and to create lower courts.
so i would say C. is the most reasonable.
They trade so muh stuff and end up with nothing to profit from
