13) The following information is available for Gable Company: $100,000 Current assets Property, plant and Current liabilities $75,000 Equipment Long-term liabilities 100,000 150,000 Other assets Stockholders' equity 125,000 50,000 Total assets Total liabilities and $300,000 stockholders' equity $300,000 Invested capital is defined as total assets. Net operating income is $60,000. What is ROI? A) 120% B) 30% C) 50% D) 20%