The equation to the circle with centre (...

The equation to the circle with centre `(2,1)` and touching the line `3x + 4y= 5` is

A

`x^(2)+y^(2)-4x-2y+5= 0`

B

`x^(2) +y^(2)-4x-2y-5=0`

C

`x^(2)+y^(2) -4x-2y+4=0`

D

`x^(2)+y^(2)-4x-2y-4=0`

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The correct Answer is:

C

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