Which group(s) of infants would know their own limitations if placed at the top of a steep incline?

Question

Quizplus · Accepted Answer

Experienced crawlers have learned to assess the steepness of inclines and avoid those that are too steep for them to crawl down safely. Experienced walkers have also learned to assess the steepness of inclines and avoid those that are too steep for them to walk down safely. Therefore, both experienced crawlers and experienced walkers would know their own limitations if placed at the top of a steep incline.

Which Group(s) of Infants Would Know Their Own Limitations If