DISCUSSION: Passage B is a bit less clear for the purposes of this question. It never explicitly says agriculture leads to carbs. But it’s implied by the statements that agriculture leads to caries, carbs cause caries (lines 43-45) and that the Ban Chiang groups cultivated carbs.
- Careful. The passage don’t say that highly process = carbohydrates. You can process non-carbohydrates as well.
- CORRECT. Both passages say this. Passage A says that agriculture leads to carbs (lines 1-3) and agriculture is linked to caries (lines 20-22). Passage B says that caries are rare in pre-agricultural populations (lines 39-42) and that cultivated foods (rice and yams) are carbs (lines 55-56).
- Passage A never mentions fiber and grit.
- “Tooth wear” is only mentioned in paragraph 2 of passage B. Tooth wear refers to fiber and grit smoothing away fissures in tooth surfaces. It’s not the same thing as tooth decay.
- Neither passage mentions overall human health.
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