How does money function as a unit of account?

a.The prices of all goods and services are measured in terms of money.

b.Bank accounts make it easy for people to store their wealth.

c.Things that function as money can do so because people know there is a standard of value that ultimately backs the money even if it is only faith.

d.Money has intrinsic worth as a commodity.

e.Money is convertible into commodities that have intrinsic worth.