This Chapter's Description of How Humans Cope with Low Oxygen

This chapter's description of how humans cope with low oxygen pressure in high altitudes illustrates

A) the need for anthropologists to pay more attention to human adaptation in extreme environments.
B) how biological adaptations are effective only when they are genetic.
C) how in matters of life or death, biology is ultimately more important than culture.
D) how human plasticity has decreased ever since we embraced a sedentary lifestyle some 10,000 years ago.
E) human capacities for cultural and biological adaptation, the latter involving both genetic and physiological adaptations.