As a Scientific Concept,race

As a scientific concept,race:

A) is very significant because it gives us a clearer understanding of human behavior than the concept of culture provides.
B) is seldom, if ever, influenced by people's beliefs.
C) justifies the exclusion of some groups from the activities of others.
D) is not very significant because it gives us little insight into human behavior.
E) is the basis for distinguishing between different groups of people.