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If two vertices of a triangle are `(-2,3)` and `(5,-1)` the orthocentre lies at the origin, and the centroid on the line `x+y=7` , then the third vertex lies at `(7,4)` (b) `8,14)` `(12 ,21)` (d) none of these

A

(7, 4)

B

(8, 14)

C

(12, 21)

D

none of these

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The correct Answer is:
D
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