Question

the 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.

please select the best answer from the choices provided

a
b
c
d

Explanation:

The Blombos Cave discoveries, like engraved ochre and shell beads, show early human abstract thought (symbolic behavior) earlier than previously believed. Option a is about metal casting (not Blombos focus), b about Islam (post - ancient), d about French colonies (not relevant to Blombos Cave's time/context). So c matches the cave's implications.

Answer:

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