As a Behavioral Advisor to the World Health Organization It

As a behavioral advisor to the World Health Organization it is your job to assess drug use and abuse in indigenous populations. You have been assigned to study the use of coca leaves, the plant from which cocaine is derived, among Indians of South America. In reading about past findings you discover

A) that these native groups have very few drug use problems.
B) that these native groups have very serious drug use problems.
C) that these native groups are so hostile to the WHO that no studies have been done.
D) that these native groups have almost been wiped out due to local drug wars.