单选题
The author of the passage mentions which of the following as posing an alternative to the Headland Hypothesis?
A、
(A) Rain forests have always possessed insufficient quantities of carbohydrate-rich resources to support foragers without the aid of agriculturalists.
B、
(B) The difficulty of raising carbohydrate-rich plant species in certain areas of the rain forest may have led to the arrest of those species' co-evolution.
C、
(C) Trade relationships between agriculturalists and foragers may have been the cause of the disappearance of certain carbohydrate-rich plant species, not vice-versa.
D、
(D) Foragers may have been willing to trade carbohydrate-rich plants in exchange for the more nutritious food products of agriculturalists.
E、
(E) Environmental changes in rain forest composition may have led to the loss of certain foraging techniques.
【正确答案】
C
【答案解析】
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