If the $L.C.M.$ and $H.C.F.$ of two expressions are $(x^{2}+6x+8)(x+1)$ and $(x+1)$ respectively, and one of the expressions is $x^{2}+3x+2$, find the other.

  • A
    $x^{2}+5x+4$
  • B
    $x^{2}-5x+4$
  • C
    $x^{2}+4x+5$
  • D
    $x^{2}-4x+5$

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