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Answer:
The correct response is Option C. The article may not reflect current knowledge.
Explanation:
This article that was published by Rick Potts would be considered dated in the field of physical anthropology because it was published more than 20 years ago. In scholarly research, it is important to use articles that are recent and relevant to current advances in the field. Given that new finds in the fossil record and advances in dating techniques have improved, there are many new findings and theories being advanced. An article from 1998 would be missing many of those new insights. You would use this article perhaps in a literature review if it was influential and you were trying to give an intellectual history of the field.
Because it leaves almost no trace and no symptoms yet can still kill you very quickly and effectively
Kennedy claims in this excerpt is that basically nothing is impossible. The things that are considered extremely difficult to reach are possible if you are willing to do them. The capability or the limits of a person are only established by him or herself.