Tangshan Mining was extended credit terms of 3/15 net 30 EOM. The cost of giving up the cash discount, assuming payment would be made on the last day of the credit period, would be ___________. If the firm were able to stretch its accounts payable to 60 days without damaging its credit rating, the cost of giving up the cash discount would only be .

A. 74%; 21.90%

B. 73%; 24%

C. 73%; 18.25%

D. 75%; 25.09%