One of the eigen vectors of matrix is \[\left[ {\begin{array}{*{20}{c}} { - 5}&2 \\ { - 9}&6 \end{array}} \right]\]  is

A. \[\left\{ {\begin{array}{*{20}{c}} { - 1} \\ 1 \end{array}} \right\}\]

B. \[\left\{ {\begin{array}{*{20}{c}} { - 2} \\ 9 \end{array}} \right\}\]

C. \[\left\{ {\begin{array}{*{20}{c}} 2 \\ { - 1} \end{array}} \right\}\]

D. \[\left\{ {\begin{array}{*{20}{c}} 1 \\ 1 \end{array}} \right\}\]

Answer: Option D