I hope it works I found it I wanted to help you!!
I would say b. precious stones Example of commodities that have been used as mediums of exchange include gold, silver, copper, salt, peppercorns, tea, large stones (such as Rai stones), decorated belts, shells, alcohol, cigarettes, cannabis, candy, cocoa beans, cowries and barley.
A representative democracy is where people elect other people to represent them so the answer is suffrage
C you gave no explanation for b
Answer: Alexander the great.
Explanation: Because i know it.
