Find the Optimal Row or Column Strategy of the Matrix $M$

Multiple Choice

Find the optimal row or column strategy of the matrix game.
-Let $M$ be the matrix game having payoff matrix $\left[ \begin{array} { r r } 4 & - 1 \\ - 4 & 5 \end{array} \right]$ .
Find the optimal column strategy.

A) $\hat { y } = \left[ \begin{array} { l } \frac { 3 } { 7 } \\ \frac { 4 } { 7 } \end{array} \right]$

B) $\hat { y } = \left[ \begin{array} { c } \frac { 5 } { 14 } \\ \frac { 9 } { 14 } \end{array} \right]$

C) $\hat { \mathrm { y } } = \left[ \begin{array} { c } \frac { 9 } { 14 } \\ \frac { 5 } { 14 } \end{array} \right]$

D) $\hat { \mathrm { y } } = \left[ \begin{array} { l } \frac { 4 } { 7 } \\ \frac { 3 } { 7 } \end{array} \right]$