How have world economies changed during the modern era?
a. countries have become more economically isolated from one another.
b. economic philosophies such as capitalism and communism have been developed.
c. environmental protection has become more important than economic growth.
d. social hierarchies have disappeared as economic equality increased throughout the world

B

Explanation:

Economic philosophies such as capitalism and communism have been developed

they forced them to b sell their land

according to howard zinn, the history presents the encounter between columbus and the arawaks as a heroic adventure of descovery but leaves in the shades the cruel slavery and bloodshed columbus led in order to pay back to his investors. he sent the indians back to his nation as a payment, slaved them to find gold in the land and punished them when they didn't find any. history presents columbus as a heroe and even celebrates his day, when in reality he led a genocide. zinn describes the story of the colonization from the arawaks point of view.