If the radius of the circel x ^(2) + y ^...

If the radius of the circel `x ^(2) + y ^(2) + 2gx+ 2fy +c=0` be r, then it will touch both the axes, if

A

`g=f=c`

B

`g=f=c=r`

C

`g=f=sqrtc=r`

D

`g=f` and `c^2=r`

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