The early humans' way of life made it impossible for them to live in C) permanent homes. The sedentary lives of the first humans made it hard for them to live in one place, as they had to hunt, forage and gather food for their communities according to seasons and supply in the area they were living and this was interchangeable over time, so for this reason they had to move around.
Cultural, Ethnic, Religious, Linguistic Geographic nationalism is called Territorial Nationalism
In the 1800s , both old and new immigrants to the untied states faced hostility because of : Differences of culture and language
Back then , the immigrants somehow seen as a threat and they basically couldn't explain/defend themselves because of the cultural barrier
hope this helps
