A) Accepted everywhere
Step-by-step explanation
A is the correct answer because paper money and change being accepted everywhere makes it a lot easier to use than other forms of payment which may not be accepted.
B cannot be the answer because a paper trail not being automatically created is not a good thing. If someone wished to track their purchases, it would be much harder to do so.
C cannot be the answer because it is very inconvenient to use physical money for large purchases because it often requires some sort of container for transportation and can be easily stolen or taken if the amount of money is revealed.
D cannot be the answer because an item being easy to lose cannot be a good thing unless one wishes to lose that item. Typically, one does not wish to lose money, so this answer would not work.