money is often to be " socially defined " what does this mean?                                                                

A) that the money supply includes all public and private securities purchased by society.                   .

B). That a nation money supply must be backed by something socially acceptable such as gold. 

C) that society defines what money is in terms of what it deems acceptable.                                          

D). that the money supply includes all public and private purchases by society.                                       

E). That parliament has defined what is money