The Duoplan Company is determining the most appropriate source of short-term funding. Trade credit terms from suppliers are 2/30, net 90. The rate for borrowing at the bank is 12%. The company has also been approached by an investment banker offering to issue Duoplans commercial paper. The commercial paper would be issued quarterly in increments of $9.1 million with net proceeds of $8.8 million. Which option should the firm select?