If $x = t^2$ and $y = 2t$,what is the equation of the normal at $t = 1$?

  • A
    $x + y + 3 = 0$
  • B
    $x + y + 1 = 0$
  • C
    $x + y - 1 = 0$
  • D
    $x + y - 3 = 0$

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