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	$623,621	$592,803
Total investments	66,480	47,203
Total property, plant, and equipment	894,033	768,618
Total current liabilities	118,875	81,565
Total long-term liabilities	277,675	245,209
Preferred 9% stock, $100 par	91,476	91,476
Common stock, $10 par	556,345	556,345
Paid-in capital in excess of par-common stock	67,296	67,296
Retained earnings	472,467	366,733

Using the balance sheets for Kellman Company, if net income is $114,782 and interest expense is $46,175 for Year 2, what is the return on total assets for the year (round percent to two decimal points)?

a.10.12%

b.8.15%

c.7.25%

d.10.76%