B: it brought together people from the West and East to trade.
The Chile’s economy grew significantly during the 1970’s
Roads were nothing more than dirt paths that were dry and dusty during the summer and muddy during the winter
-historylink101.com (Travel by Land in Ancient Greece)
The Kansas-Nebraska act allowed the people to vote if wanted to allow slavery in those states and this act served to appeal the Missouri Compromise. The Missouri Compromise prohibited slavery in the north. This act was also said to be a failure because it was made to end the conflict over slavery, but resulted in Kansas becoming a "battleground over slavery."
The natural resources included gold, diamonds, cooper, cobalt, and rubber. These resources were tapped by the native Congo population through a system of slave labor implemented by King Leopold II. This made the Belgian government/economy prosper at the hands of the slave laborers in this country. This brutal regime resulted in the deaths of thousands of Congo citizens.