The correct response is:
With a credit card, you have to pay the full amount back all at once, while a loan allows you to pay back smaller amounts over time.
This statement accurately describes a key difference between credit cards and loans. Credit cards typically require you to pay at least a portion of the balance each month, but you can choose to carry a balance and pay interest on it. Loans, on the other hand, often involve a set repayment schedule, allowing you to pay back the borrowed amount in smaller installments over time.