Question

which of the following observed chimpanzee behaviors caused scientists to reevaluate what it meant to be human? a. kissing b. holding hands c. tool making d. speaking please select the best answer from the choices provided a b c d

Explanation:

Historically, tool - making was considered a uniquely human trait. When chimpanzees were observed making tools, it challenged long - held views about what defined humanity. Kissing and holding hands are social behaviors not exclusive to humans, and chimpanzees do not speak in the human language sense.

Answer:

C. tool making