Anguiano Inc The Company's Average Operating Assets Were $5,000,000

Anguiano Inc. reported the following results from last year's operations: $\begin{array}{lr}\text { Sales } & \$ 10,500,000 \\\text { Variable expenses } & 8,210,000 \\\text { Contribution margin } & 2,290,000 \\\text { Fixed expenses } & 1,555,000 \\\text { Net operating income } & \$ \quad 735,000 \\\end{array}$ The company's average operating assets were $5,000,000.
Last year's return on investment (ROI) was closest to:

A) 7.0%
B) 14.7%
C) 45.8%
D) 47.6%