All of the Following Characterized the Changeover from the Mousterian

All of the following characterized the changeover from the Mousterian to the Upper Paleolithic EXCEPT

A) growth in Homo's total population and geographic range.
B) an increase in the number of distinct tool types, reflecting functional specialization.
C) marked social and economic stratification among members of a society.
D) increasing local cultural diversity as people specialized in particular economic activities.
E) increasing standardization in tool manufacture.