Ancient goldsmiths are credited with developing deposit slips for gold and silver, the creation of the fraction reserve banking system, and creating paper notes that could purchase goods and services.
The business of the goldsmiths in Ancient period was of the production and sale of silverware and traffic in silver and gold coin and bullion. Which also included the exchange of foreign coins for local coins and vice versa.
As this system evolved, the goldsmith bankers developed a form of Fractional reserve banking system, which enabled them as a group to create credit out of thin air.
Hence, option A, B, and C are correct.
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