B. Macklin security firm is offered $80,000 in one year for providing CCTV coverage of a property owned by a Hollywood star. The cost of providing this coverage to the security firm is $74,000, payable now. If B. Macklin security firm planned to borrow the funds from a bank, what is the maximum interest rate a bank could charge the security firm so they at least break even on this project?

a. 8.9%

b. 8.1%

c. 8.2%

d. 7.5%