Answer:
Barter
Explanation:
I think the answer is C! I may be wrong but the rest don't seem accurate to the history. Good luck!
Crete, Byblos, Ugarit.
23
Explanation: convert 5 6/8 into an improper fraction
46/8 ÷ 2/8 (multiply by the reciprocal)
46/8 · 8/2 (cancel the common factor: 8)
46/2