Answer:
The answer is below
Step-by-step explanation:
The three vital functions that money performs are the following
1. i) medium of exchange,
ii) unit of account
iii) store of value
2. Items "B (A checking account at the Bank of America)" perform all of these functions and are money.
Items "A. (A credit card)
B. (A checking account at the Bank of America)
D. (A Upper A diamond ring)
E. (Plastic sheets used to make Visa cards, )
F. (Ancient Roman coins)
G. (GM bonds) perform some of these functions and are not money.