Answer: A: the amount of credit that is used.
While credit is all or part of an amount a borrower may use, debt is the amount of credit that is used.
Explanation:
Debt refers to money borrowed by an individual from another. The individual that borrow the money is known as the debtor or borrower while the individual who gave out the debt is known as the creditor or lender. It is also a deferred payment which is paid in the future. It is usually paid back with interest. Types of loan includes: mortgages, bonds, loans and so on.