Which sentence below would make a good concluding sentence in a paragraph about the need to control credit-card spending?
A.
College students need to be careful with their money in every way.
B.
So watch how you use your credit cards, for it could take years to pay off your debts.
C.
An 82-inch LCD flat panel TV screen can cost up to $46,465.
D.
Many students find it difficult to get a credit card.