DISCUSSION: This is a bit of a hard question. I had to check a few of the answers against the passage. I found B and C tempting, but they both contain terms that don’t match the passages.
- CORRECT. See lines 3-5 in passage A, and 36-38 in passage B.
I don’t love this answer, because I’m not sure passage B is “primarily concerned” with the agricultural record. They seem more specifically concerned with the tooth health of the Ban Chiang populations. But passage B is at least concerned with the development of agriculture in that population, so this is the best answer.
- “Overall health” is why this is wrong. Both passages were only concerned with tooth decay.
- “Strictly agricultural societies” is why this is wrong. Passage A talks about tooth decay in nonagricultural populations (paragraph 3) and passage B says the Ban Chiang groups were not entirely agricultural – they ate some wild foods (lines 54-54).
- Neither passage mentions the first agricultural society. Passage B, in particular, only talks about Thailand.
- This is a general answer. Neither passage talks about hunter-gatherer carbohydrate availability in general.
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