A table showing the functions of money has to be completed by four students. Which student is right?
- AStudent A: medium of exchange ✓, store of value ✓, unit of account ✓
- BStudent B: medium of exchange ✓, store of value ✓, unit of account (blank)
- CStudent C: medium of exchange (blank), store of value ✓, unit of account ✓
- DStudent D: medium of exchange ✓, store of value (blank), unit of account ✓