E E Evans-Pritchard's Approach to Anthropology Has Been Criticized for Being

E. E. Evans-Pritchard's approach to anthropology has been criticized for being ahistorical. What was one of the major shortcomings of his work?

A) He ignored the fact that the communities he studied were part of a larger preexisting colonial system.
B) He conducted experiments on people while in the field without their informed consent.
C) He failed to consider the impact of his work on the tribes he studied.
D) He lacked understanding about the forces of evolution which had shaped the modern human.