I think it’s B too, They were very mean to the natives and stole their land by being violent
The lowland river system.
My opinion:
I would say my neighbors share some of the same cultures, Christmas, Thanksgiving, Halloween (whatever you believe is a tradition). I certainly know we don’t share the same religion. Some believe in God and etc. some don’t. It’s better for everyone to share either the same or different culture. It is possible to share the same one.
Greenland is part of North America, but Greenland is politically associated with Denmark/Norway.