John Has $4,000 in Savings That He Has Set Aside

John has $4,000 in savings that he has set aside to buy an engagement ring for his girlfriend, even though he isn't planning to propose for quite some time. When John's car needs a new transmission he charges the $2,000 repair cost to his credit card and pays off the balance over several months. John's decision shows:

A) a recognition that money is fungible.
B) that everyday expenses are easier to charge than big purchases.
C) that he has made false distinctions about his money.
D) the concept of over-consumerism.