The fiscal 2013 financial statements of Baker Hughes, Inc shows net operating margin of 5.59%, net operating asset turnover of 1.06, return on equity of 6.30%, and adjusted return on assets of 4.58%. Whats the companys equity non-operating return?

a) 0.37%

b) Theres not enough information to calculate the ratio

c) 1.45%

d) 0.71%

e) 1.01%