Even Though Credit Cards Are Used by Many People in Making

Even though credit cards are used by many people in making purchases,they are not included in the M1.A major reason is that

A) credit cards are a way of going into debt,whereas the components of M1 represent assets.
B) credit cards had not yet been invented when money was defined.
C) some credit cards are issued by stores (such as Sears) ,whereas all money is issued by banks.
D) credit cards are much less liquid than M1.
E) credit cards don't affect consumer expenditures,whereas M1 does.