option B is false.
Bitcoin uses smart contracts to specify the business rules.
Smart contracts were first proposed in 1994 by Scratch Szabo, an American PC researcher who designed a digital currency called "Bit Gold" in 1998, completely 10 years before the development of bitcoin. As a matter of fact, Szabo is often reputed to be the genuine Satoshi Nakamoto, the mysterious creator of bitcoin, which he has denied.
Szabo characterized smart contracts as modernized exchange conventions that execute terms of an agreement.
He needed to broaden the usefulness of electronic exchange techniques, like POS (point of sale), to the advanced domain.
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