Sam takes a five-dollar bill from his wallet. He exchanges the bill for four quarters and four one-dollar bills. He then uses the change to buy a bottle of water from a vending machine. Which characteristics of money has Sam best demonstrated?
A. Acceptability, divisibility, and portability
B. Divisibility, scarcity, and stability of value
C. Durability, portability, and standard
D. Medium, scarcity, and value