Which of the following assertions represents the central tenet of MM Theory with no taxes?

Group of answer choices

A firm's cost of equity is directly related to the firm's debt$-$equity ratio.

A firm's WACC is directly related to the firm's debt$-$equity ratio.

The interest tax shield increases the value of a firm.

The capital structure of a company is completely unimportant.

Levered firms have greater value than unlevered firms.