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The equation of the circle passing thro...

The equation of the circle passing through `(2 a, 0)` and whose radical axis w.r.t the circle `x^(2)+y^(2)=a^(2)` is `x=(a)/(2)` is

A

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

B

`x^(2)+y^(2)+2 a x=0`

C

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

D

none of these

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The correct Answer is:
C
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