-In a World with Taxes,M&M's Second Proposition Defines the Expected

$\begin{array}{c}\begin{array}{|l|}\hline \\\hline \\ \hline \text {Anticipated operating income }\\ \hline \text {Interest}\\ \hline \text {Earnings before tax}\\ \hline \text {Tax at 30 \% }\\ \hline \text {Earnings after tax}\\\hline \\ \hline \text {Combined debt and equity income }\\ \text {(interest plus earnings after tax) }\\ \hline \end{array}\begin{array}{l|} \hline \text {ALL EQUTTY}\\ \hline \\ \hline \$ 1,000,000 \\\hline\underline{\quad\quad}\\ \hline\$1,00,000\\ \hline\underline{\$300,000}\\ \hline \$ 700,000 \\ \hline\\ \hline\\\$700,000\\ \hline\end{array}\begin{array}{l|} \hline \text {EQUITY AND DEBT}\\\hline\\\hline\$ 1,000,000 \\\hline\underline{\$ 200,000} \\\hline\$ 800,000 \\\hline\underline{\$-}\\\hline\$\\\hline\\\hline\\\$\\\hline\end{array}\end{array}$
-In a world with taxes,M&M's second proposition defines the expected return on equity as:

A) K_e = K_u + (K_u - K_d) (1 - t) ( $\frac { D } { E }$ )
B) K_e = K_u + (K_u + K_d) (1 - t) ( $\frac { D } { E }$ )
C) K_e = K_u + (K_u - K_d) (1 + t) ( $\frac { D } { E }$ )
D) K_e = K_u - (K_u - K_d) (1 - t) ( $\frac { D } { E }$ )