Answer:
I beleive the answer is b. Socail Contact.
Explanation:
Varied amounts is a good bet. You have a certain amount to pay for objects and bills also have amounts so is easier.
Durable is also good but money can be regained by the bank or job.
Portable is also good but in other times people paid with gold bars which were quiet heavy.
Limited Supply is not it because you need it. So factories keep on producing.
D: The United States was meant to stretch from the Atlantic ocean to the Pacific ocean
Twot......................................................................................
