Your firm currently has an operating cycle of 90 days. You are analyzing some operational changes which are expected to decrease the accounts receivable period by 4 days and decrease the inventory period by 5 days. The accounts payable turnover rate is expected to increase from 8 to 9 times per year. If all of these changes are adopted, what will be your firm's new operating cycle?

a

81 days

b

86 days

c

76 days

d

94 days

e

90 days