The Indian Removal Act was signed into law by President Andrew Jackson on May 28, 1830, authorizing the president to grant unsettled lands west of the Mississippi in exchange for Indian lands within existing state borders. A few tribes went peacefully, but many resisted the relocation policy.
I think it’s (C) ;)
C: innovation moved from agricultural to industrial production
One measure of these developments can be seen in the fact that in 1800 a trip from ... tone to the lyrics of many popular songs published in the mid 19th century. ... Sentiments on these issues were registered in a number of popular songs.
Social hierarchy Division of society by rank or class.