Which of the following assumption is of Net Income Approach of capital structure?

A. Cost of debt is less than cost of equity.

B. There is no tax.

C. Risk perception of invester will not change by the use of debt.

D. Change in capital structure of a company does not affect market value of the firm. 

E. The business risk will remain constant at every level of debt and equity mix.

Choose the correct answer from the options given below: