Pls help to explain how to get answer C. Thanks

Company B discloses the following information:

-Return on net operating assets = 10 percent

-Net operating profit after taxes = 500,000

-Revenue = 3,000,000

-Equity = 2,000,000

Company B's operating asset turnover is

A.Between 40 and 49.9 percent

B.Between 50 and 59.9 percent

C. Between 60 and 69.9 percent

D. Between 70 and 79.9 percent