10. Mr. Fisher has built several houses and is offering buyers mortgage rates of 10% for the first 5 years after which the loan adjusts to the current rate of 10.75% for the remainder of the 15 year term. Current rates are 10.75%. Fourth National Bank will provide the loans, if Mr. Fisher pays an equivalent amount up front to buy down the interest rate. If a house is sold for $320,000 with a 90% loan, how much would Mr. Fisher have to pay to buy down the loan? A) $6,174.03 B) $6281.81 C) $6688.88 D) $6979.32