Selected financial information for ELX Corporation is reproduced below: 1. Net operating assets (NOA) turnover (average NOA equals ending NOA) is 4. 2. Net operating profit after tax (NOPAT) margin is 6% 3. Leverage ratio (average net financial obligation to average common equity) is 2.5, and the spread is 7.3%. What is ELX's return on common equity? O a. 35.02% O b.54.16% OC 27.83% d. 42.25%