Which of the following statements about money is not true ?

A. A debit card is not really money because it is only a means of transferring money between accounts
B. All the wealth that people hold, in whatever form, should be considered as money
C. Wealth held in the current account you hold with your bank is almost as convenient for buying things as wealth held in your wallet so the wealth in current accounts should be included in measures of money
D. In a complex economy it is not easy to draw a clear dividing line between assets that should be considered as money and those that should not