The balance sheets at the end of each of the first two years of operations indicate the following:

Kellman Company
	Year 2	Year 1
Total current assets	$611,431	$561,313
Total investments	63,987	51,189
Total property, plant, and equipment	866,804	702,453
Total current liabilities	119,450	85,844
Total long-term liabilities	284,513	228,043
Preferred 9% stock, $100 par	94,961	94,961
Common stock, $10 par	586,033	586,033
Paid-in capital in excess of par-common stock	68,057	68,057
Retained earnings	389,208	252,017

Using the balance sheets for Kellman Company, if net income is $109,787 and interest expense is $31,426 for Year 2, what is the return on stockholders' equity for Year 2 (round percent to two decimal points)?

a.11.26%

b.7.12%

c.9.88%

d.8.35%