ACME machining plans to upgrade 6 machines to improve their operations.The cost will be $15,000 per machine, and they have been offered several ways to finance the expenditure for the next 5 years.Which would be the best option below if the company wanted the lowest interest rate?

All payments at maturity, total of payments = $113, 623

Constant Payment loan, total of payments = $108,286

Constant Principal loan, total of payments = $107,550

Interest only loan, total of payments = $112,500