FreeMart Is an Online Fashion Store That Readily Accepts Payments

FreeMart is an online fashion store that readily accepts payments in the form of cryptocurrencies. These digital currencies can be sent directly by a consumer to the store's wallet. This enables faster processing of a consumer's order. In this scenario, these currencies:

A) refer to currencies that are present in a physical form.
B) are backed by all national governments.
C) refer to electronic currencies.
D) are designated to be controlled by intermediaries.