If \( \left[\begin{array}{lll}1 & x & 1\end{array}\right]\left[\beg...

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If \( \left[\begin{array}{lll}1 & x & 1\end{array}\right]\left[\begin{array}{lll}1 & 2 & 3 \\ 0 & 5 & 1 \\ 0 & 3 & 2\end{array}\right]\left[\begin{array}{l}x \\ 1 \\ -2\end{array}\right]=0 \), then the value of \( x \)
\( \mathrm{P} \) is:
(A) 0
(B) \( 2 / 3 \)
(C) \( \frac{5}{4} \)
(D) \( -4 / 5 \)
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