In the Debate Over the Emergence of Modern Humans and Modern

In the debate over the emergence of modern humans and modern behavior, one side argues that modern behavior evolved gradually while the other side argues that…

A) modern behavior emerged early in the nineteenth century.
B) there was a sudden creative emergence of modern behavior about 45,000 years ago.
C) modern human beings evolved in North America.
D) there is no way to tell when modern human beings emerged.