Zuka Company has total assets of $224,000 and common cquity of $156,600. Annual sales were $425,600, and the company had a profit margin of 5.2%. What is Zuka's ROE according to the DuPont equation?

a. 11.996
b. 12.4%
c. 9.9%
d. 14.116
e. 7.4%