For the matrix \[{\text{A}} = \left[ {\begin{array}{*{20}{c}} 3&{ - 2}&2 \\ 0&{ - 2}&1 \\ 0&0&1 \end{array}} \right],\]    one of the eigen values is equal to -2. Which of the following is an eigen vector?

A. \[\left[ {\begin{array}{*{20}{c}} 3 \\ { - 2} \\ 1 \end{array}} \right]\]

B. \[\left[ {\begin{array}{*{20}{c}} { - 3} \\ 2 \\ { - 1} \end{array}} \right]\]

C. \[\left[ {\begin{array}{*{20}{c}} 1 \\ { - 2} \\ 3 \end{array}} \right]\]

D. \[\left[ {\begin{array}{*{20}{c}} 2 \\ 5 \\ 0 \end{array}} \right]\]

Answer: Option D