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ax ^(2) + 2y ^(2) + 2bx y +2x -y + x=0 r...

`ax ^(2) + 2y ^(2) + 2bx y +2x -y + x=0` represents a circle through the origin, if

A

`a=0,b=0,c=2`

B

`a=1,b=0,c=0`

C

`a=2,b=2,c=0`

D

`a=2,b=0,c=0`

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