If the system of equations $3x - 2y + z = 0$,$\lambda x - 14y + 15z = 0$,and $x + 2y + 3z = 0$ has a non-trivial solution,then $\lambda = $

  • A
    $5$
  • B
    $-5$
  • C
    $-29$
  • D
    $29$

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