Refer to the article “From Barter to Bitcoin” in your Money, Money, Money magazine for a complete version of this text.

Based on the information in “From Barter to Bitcoin,” why are many people wary of using bitcoin?

A) Unlike other currency, its value changes frequently and dramatically.
B) As opposed to paper money, it has only been in use since 2009.
C) Unlike most currency, its form is digital, so it does not seem real.
D) While there is only one type of credit, it is only one of more than 3,000 cryptocurrencies.