We Can Conclude the All of the Following About Human

We can conclude the all of the following about human diversity except:

A) it is associated with human adaptation.
B) culture can render some human variation largely irrelevant from a biological perspective.
C) as a biological concept,race is a productive way to understand the human species.
D) no discrete types of human exist.
E) the paleoanthropological record does correlate biology and culture,but this does not hold for living peoples.