17. Which of the following can be inferred from the passage about the study of cognitive processes in apes?

Answer: A

Explanation:

It had produced little in the way of dramatic results in the period between the 1920s and van Lawick-Goodall's discovery.

The passage indicates that prior to van Lawick-Goodall's discovery, there was limited progress in the field of cognitive processes in apes, suggesting that significant advancements came only after this pivotal finding.

A) It had produced little in the way of dramatic results in the period between the 1920s and van Lawick-Goodall's discovery.

This option is correct as the extract implies that before van Lawick-Goodall's discovery, the study of cognitive processes in apes had not yielded significant results, as the focus was largely on tool use without substantial breakthroughs in understanding ape cognition.

B) It has been sharply divided between those who study apes in the wild and those who study apes under experimental conditions.

This option is incorrect because the passage does not mention any division in the study of apes between field and experimental settings. Instead, it highlights a continuum of research without suggesting a separation of methodologies.

C) Until very recently, it had not fully assimilated van Lawick-Goodall's discovery.

This option is incorrect as the passage does not provide evidence that the study of cognitive processes in apes failed to incorporate van Lawick-Goodall's findings. Instead, it suggests that her discovery was significant and transformative for the field.

D) Until van Lawick-Goodall's discovery, it was dominated by those skeptical that apes possessed cognitive understanding.

This option is incorrect; the passage does not mention skepticism towards ape cognition as a dominant theme prior to van Lawick-Goodall's discovery. Instead, it focuses on the exploration of tool use and its implications for cognitive understanding.

E) Until van Lawick-Goodall's discovery, it focused almost entirely on tool use apes.

This option is incorrect because, while tool use was a significant aspect of study, the passage indicates that the field also engaged with broader cognitive processes and did not solely focus on tool use.

Conclusion

In summary, the correct answer A reflects the passage's assertion that prior to the significant findings of van Lawick-Goodall, the study of ape cognition had not produced notable advancements. Other options either misinterpret the information presented or introduce concepts not supported by the text, confirming that A is the most accurate inference regarding the state of cognitive studies in apes during that period.