Middle Stone Age (MSA) Behavior May Not Have Been as Primitive

Multiple Choice

Middle Stone Age (MSA) behavior may not have been as primitive as some anthropologists posit. Which of the following evidence supports this statement?

A) Anthropologists have found shell beads colored with ocher.
B) Anthropologists have found that MSA people did not transport materials over long distances.
C) Anthropologists have found that the only tools MSA people used were microliths.
D) Anthropologists have found that MSA people did not process tools before they manufactured them.