Because they were new and might cause uprisings, undermined Greek tradition
Can you post the list of options and then I might be able to answer :)
One of the greatest breakthroughs that the Native Americans achieved during the start of the second half of 20th century was that their respective lands were brought back to them. In addition, the federal government had started to provide financial aids to the tribal groups with regards to their agricultural lives.
They were most concerned about the ban of slavery in all states.