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Let (x,y) be any point on the parabola y...

Let (x,y) be any point on the parabola `y^2= 4x` . Let P be the point that divides the line segment from (0, 0) to (x, y) in the ratio 1 : 3. Then the locus of P is:

A

`x^(2)=y`

B

`y^(2)=2x`

C

`y^(2)=x`

D

`x^(2)=2y`

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