Claudius took out an unsubsidized Stafford loan at the beginning of his six-year college career. The loan had a principal of $4,850, an interest rate of 6.5% compounded monthly, and a duration of ten years. If Claudius started paying off the loan when he graduated, what is his monthly payment? Round all dollar values to the nearest cent.a.$71.37b.$81.25c.$55.07d.$76.55