The following data are available for the South Division of Redride Products, Inc. and the single product it makes:

Unit selling price	$71
Variable cost per unit	$21.50
Annual fixed costs	$336,000
Average operating assets	$3,550,000

If South wants a residual income of $63,500 and the minimum required rate of return is 10.00%, the annual turnover will have to be (Round your intermediate calculations and final answer to 2 decimal places):

a. 3.29

b. 0.30

c. 0.21

d. 0.69