If one root of $x^{2}-5x+6=0$ is also the root of $x^{2}+3x+c=0$,then $c = \ldots$

  • A
    $10$ or $18$
  • B
    $-10$ or $-18$
  • C
    $9$ or $5$
  • D
    $-9$ or $-5$

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