One of the eigen vectors of the matrix \[{\text{A}} = \left[ {\begin{array}{*{20}{c}} 2&2 \\ 1&3 \end{array}} \right]\]   is

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

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

C. \[\left\{ {\begin{array}{*{20}{c}} 4 \\ 1 \end{array}} \right\}\]

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

Answer: Option A