Dickonson Products is a division of a major corporation. The following data are for the last year of operations: Sales........... $16,640,000 $399,360 Net operating income. Average operating assets.......... $4,000,000 The company's minimum required rate of return............. 18% The division's turnover is closest to: Select one: a 3.78 b. 41.67 c. 4.16 d. 0.10