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The locus of the centre of a circle which touches externally the circle `x^2 + y^2-6x-6y+14 = 0` and also touches Y-axis, is given by the equation
(a) `x^2-6x-10y+14 = 0`
(b) `x^2-10x-6y + 14 = 0`
(c) `y^ 2-6x-10y+14-0`
(d) `y^2-10x-6y + 14 = 0`

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