Which of the following statements is true? 1. Residual income should be used to evaluate an investment center rather than a cost or profit center II. Residual income can be used most effectively in comparing the performance of divisions of different size. III. Residual income is the difference between net operating income and the product of average operating assets and the minimum rate of return. Multiple Choice Both statements I and Ill are true. Both statements Il and lil are true All of the statements are true None of the statements are true