To What Does the Advent of Behavioral Modernity Refer

To what does the advent of behavioral modernity refer?

A) when early anatomically modern humans became fully human in behavior (relying on symbolic thought and elaborating cultural creativity) as well as in anatomy
B) when hominids became hominins
C) the beginning of a truly civilized and sedentary life, achieved 10,000 years ago
D) when early anatomically modern humans began to manipulate fire
E) the beginning of life beyond the forest and in the open grasslands