Indicate the effect that the following will have on the operating cycle. Use the letter I to indicate an increase, the letter D for a decrease, and the letter N for no change: a. Average receivables goes up. b. Credit repayment times for customers are increased. c. Inventory turnover goes from 3 times to 6 times. d. Payables turnover goes from 6 times to 11 times. e. Receivables turnover goes from 7 times to 9 times. f. Payments to suppliers are accelerated.