When Looking at the Concept of "Race," It Is Important

Multiple Choice

When looking at the concept of "race," it is important to remember that

A) human groups have intermixed for so many centuries that it is impossible to tell, biologically, to what "race" any given individual belongs.
B) the best available evidence suggests that all people descended from the same ancient ancestors in Africa.
C) among early human populations, darker skin was a protective adaptation to sun exposure near the equator.
D) all of these statements are true.