Answer:
The cultures of Indigenous people in North America show that despite commonalities, Native cultures varied greatly.
Explanation:
The first option is not correct because there were a lot of Native groups in North America, not just two.
The second option is correct because the Native cultures did share some basic commonalities, but there was an abundance of cultural variations across the continent, which shouldn't come as a surprise considering the different environments and resources that different groups had at disposal.
The third option is not correct because North America had numerous civilizations, though it can be said that there was a much higher concentration of civilizations in some areas than others.
The fourth option is not correct because there were huge differences between the different cultural groups, so much so that when compared they were almost totally alien to each other.
