Answer: Option D
Explanation: As per the most common definition, money refers to an item that is acceptable as a medium of exchange for sale and purchase in a particular economic area.
However the money cannot be defined clearly as every commodity in the market have different utility value to different consumers which could not be calculated individually. Every asset that has different degree of liquidity and moneyness as per its different factors.
Hence from the above we can conclude that the correct option is D.