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Let AB be a chord of the circle x^(2) +y...

Let AB be a chord of the circle `x^(2) +y^(2) =r^(2)` subtending a right angle at the centre.Then,the locus of the centroid of the `Delta PAB` as P moves on the circle, is `:`

A

a parabola

B

an ellipse

C

a circle

D

a pair of straight lines

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The correct Answer is:
C
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