What Two Distinct Sets of Questions Are Sought by Biological

What two distinct sets of questions are sought by biological anthropologists?

A) the emergence and evolution of human beings; how and why contemporary humans vary biologically
B) reconstructing cultural changes in the past through artifacts; the history and diversity of languages
C) applying knowledge of culture to correct social problems; understanding how and why people today vary in their customs and behaviors
D) using cultural knowledge to dominate and exploit other societies; studying the earliest examples of tool use by our human ancestors