Find the Optimal Row or Column Strategy of the Matrix $\mathrm { M }$

Find the optimal row or column strategy of the matrix game.
-Let $\mathrm { M }$ be the matrix game having payoff matrix $\left[ \begin{array} { r r } 1 & 0 \\ - 3 & 6 \end{array} \right]$ .
Find the optimal row strategy.

A) $\hat { x } = \left[ \begin{array} { l } \frac { 3 } { 5 } \\ \frac { 2 } { 5 } \end{array} \right]$
B) $\hat { x } = \left[ \begin{array} { c } \frac { 9 } { 10 } \\ \frac { 1 } { 10 } \end{array} \right]$
C) $\hat { x } = \left[ \begin{array} { c } \frac { 1 } { 10 } \\ \frac { 9 } { 10 } \end{array} \right]$
D) $\hat { x } = \left[ \begin{array} { c } \frac { 2 } { 5 } \\ \frac { 3 } { 5 } \end{array} \right]$