单选题 The information in the passage suggests that advocates of the Headland Hypothesis discussed in the passage made which of the following errors?

• (A) Failing to recognize the reciprocal relationship between foraging practices and the availability of carbohydrate-rich species
• (B) Attributing the trade relations between agriculturalists and foragers to the differences in the nutritional qualities of various rain forest food products
• (C) Overemphasizing the importance of carbohydrate-rich species to the diet of rain forest foragers
• (D) Interpreting changes in rain-forest composition to the willingness of agriculturalists to trade with foragers
• (E) Failing to observe the role of seed-disbursal in the ecological success of the sago palm