A straight line through the point $(1, 1)$ meets the $x$-axis at ‘$A$’ and the $y$-axis at ‘$B$’. The locus of the mid-point of $AB$ is

  • A

    $2xy + x + y = 0$

  • B

    $x + y - 2xy = 0$

  • C

    $x + y + 2 = 0$

  • D

    $x + y - 2 = 0$

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