What Is the Major Advantage of Using Money as Opposed

What is the major advantage of using money as opposed to barter?

A) In the barter system,there is no way to express values of commodities.
B) Money is the only convenient way to store one's wealth.
C) Money has more value than real goods.
D) Money stays where you put it,whereas a cow often has to be fenced in.
E) The use of money significantly reduces transactions costs.