The detail that supports the idea digital currency is risky is the fact the value of this currency changes.
Digital currency or electronic money refers to the currency that is not printed, instead, this type of currency is only available in a digital form.
The details that show this currency is risky is "The value of cryptocurrency changes often and depends on the demand". This is because a variable value of the money implies people cannot easily predict profits when investing by using this currency,
Note: This question is incomplete because the options are missing; here is the missing section:
"Bitcoins don't exist in the way quarters and dimes exist."
"The value of cryptocurrency changes often and depends on demand."
"Digital currency has no go-betweens whatsoever."
"In the end, no one computer can fool the network."
Learn more about cryptocurrencies in: https://brainly.com/question/23956699
