I think it is B. Fait money only has value as a medium of exchange but idk put it and see if im right I researched it and got that so let me know if im right :)
Barter is a system of exchange where goods or services are directly exchanged for other goods or services without using a medium of exchange, such as money
Answer: At least a day to a mouth cause that is a lot of votes and it also depends what time that they started to recount the numbers.
Explanation: