Huiyi takes out a loan for 85,000. She is to repay the loan with 360 level monthly payments (with the only possible exception of the final payment due to rounding up the payment to the nearest cent) with the first occurring one month from today. The nominal rate of interest is 6% convertible monthly for the first 15 years and 4.8% convertible monthly for the next 15 years. What is the amount of interest paid in the first 180 monthly payments? (Round up the first 359 payments to the nearest cent.)

(a) 59,000-60,000 (b) 60,000-61,000 (c) 62,000-63,000 (d) 64,000-65,000 (e) 68,000-69,000