Biochemical Corporation requires $620,000 in financing over the next three years. The firm can borrow the funds for three years at 11.60 percent interest per year. The CEO decides to do a forecast and predicts that if she utilizes short-term financing instead, she will pay 8.25 percent interest in the first year, 1275 percent interest in the second year, and 9.50 percent interest in the third year. Assume interest is paid in fult ot the end of each yeat. a. Determine the total interest cost under each plan. b. Which plan is less costly? Long-term fixed-rate plan Short-term variable-rate plan