If the inverse point of $(1,1)$ with respect to the circle $x^2+y^2-4x-6y+12=0$ is $(h, k)$,then $h+k$ is equal to

  • A
    $\frac{22}{5}$
  • B
    $\frac{8}{5}$
  • C
    $2$
  • D
    $\frac{-6}{5}$

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