What is a credit​ spread? A. The difference between the net worth of a borrower and the amount of the loan the borrower would like to secure. B. The difference between a​ borrower's credit score and the score of the most​ credit-worthy borrower. C. The difference between interest rates on loans to households and businesses and interest rates on completely safe assets such as U.S. Treasury bonds. D. The difference between the interest rate on corporate bonds with different maturities.