Let L be a normal to the parabola y^2=4x...

Let `L` be a normal to the parabola `y^2=4x dot` If `L` passes through the point (9, 6), then `L` is given by (a) `y-x+3=0` (b) `y+3x-33=0` (c) `y+x-15=0` (d) `y-2x+12=0`

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