Question

he discovery of the Blombos cave suggests _________________
a.
copper alloy or bronze casting were first used in Sub Saharan Africa.
b.
Islam became an economic and religious force in West and North Africa.
c.
that abstract thought in humans occurred much earlier than once thought.
d.
the French colonies were taken over before the third or fourth centuries.

Answer 1

c. that abstract thought in humans occurred much earlier than once thought.

The Blombos Cave finds (engraved ochre, shell beads, and worked bone dated to ~75–100 kya) indicate early symbolic behavior and abstract thinking.