Jef Doyle is evaluating results for two separate business segments under his control. Selected financial information for each segment follows: Segment A Segment B Sales $100,000 $138,000 Net Operating Income (loss) 5,000 (2,000) Average Assets $200,000 $200,000 Calculate return on investment for Segment A. A. 0.5 B. -0.01 C. 0.025 D. 0.125 O E. none of the above