The 2016 Balance Sheet of E

Multiple Choice

The 2016 balance sheet of E.I. du Pont de Nemours and Company shows average DuPont shareholders' equity attributable to controlling interest of $9,996 million, net operating profit after tax of $2,308 million, net income attributable to DuPont of $2,513 million, and common shares issued of 950.044 million.
Assume the company has no preferred shares issued. DuPont's return on equity (ROE) for the year is:

A) 30.7%
B) 37.6%
C) 25.1%
D) 36.4%
E) There is not enough information to calculate the ratio.