The answer to your question is C
There are many explanations. One is that it caused many wars because countries wanted to take the resources and food of other republics who were good at agriculture. Another is that it brought the rise of things like oppression and inequality. People started getting enslaved as prisoners of war while women were often considered inferior because they couldn't be as efficient at farming because physical strength. Also, it brought separations into classes based on wealth and also gender based division with men being the "strong bread winners" while women were just "housewives", since they couldn't work on the land as strongly as men. And it also made people shorter, weaker and changed nature. People stopped getting a nutritious diet because they kept eating the same food. While hunters and gatherers would have meat, fruit, vegetables and grain.
The removal of the Cherokees was a product of the demand for arable land during the rampant growth of cotton agriculture in the Southeast, the discovery of gold on Cherokee land, and the racial prejudice that many white southerners harbored toward American Indians.
In 1830, the U.S. Federal government passed the Indian Removal Act. This Act gave the president authority to make treaties with the Cherokee, Choctaw, Muscogee-Creek, Seminole, and Chickasaw Nations. Its purpose was to move these entire societies from their land in the southeast to land west of the Mississippi River.
C. They had better weaponry whereas Persians weren't as advanced.
