B.
The Gibbons v. Odgen was a decision that ruled that Supreme Court could regulate interstate commerce.
One thing was that Seas were sometimes difficult to navigate which limited communication - D. this was already a factor which limited the possibility of one united Greece emergin because it made it very difficult to talk to these isolated islands that couldbe found through the difficult-to-navigate seas.
Another thing was that C - some city-states were located on isolated islands.
<span>The correct answer is C. The Soviet style of communism focused on urban workers, while the Chinese style focused on rural peasants.</span>
The major difference between Maoism and the Soviet style of communism <span>is that Mao considered peasants as the bulwark of the revolutionary energy, led by the working class in China while Soviet Union focused on urban workers.</span>
