<span>B. attacked the traditional view that earth is the center of the solar system.
Hope this helps.</span>
Answer:
I forget what it's called but in 1905 the Russian royal guard shot innocent peasants, which led to Russia's independence in 1918 and the switch to communism.
Robert Fulton was an amazingly inventive person who has been credited for inventing many devices, although perhaps his most famous invention was the steamship.
It's been a while but I believe it's C. Supply and Demand would fluctuate the prices.