One of the most useful social conventions is money, whose universality across societies is matched only by language.
Evidence
One of the most useful social conventions is money, whose universality across societies is matched only by language.
Unlike language, which is rooted in an innate ability, money is an artificial, human invention.
Conclusion
Hence, it seems probable that the invention of money occurred independently in more than one society.
Evaluate
This argument overlooks the possibility that money was invented in one society and then shared from one society to the next until every society adopted its use. To ensure that money was invented independently in more than one society, the right answer should rule out the possibility that some societies adopted the use of money after observing its use in another society.