यदि $x+iy = \frac{(3+2i)(4-7i)(12+13i)}{(13-12i)(2-3i)(11+3i)}$ है,तो $x^2+y^2=$

  • A
    $1$
  • B
    $2$
  • C
    $\frac{1}{2}$
  • D
    $3$

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