1.

The equation of the circle concentric with the circle \[{{x}^{2}}+{{y}^{2}}-4x-6y-3=0\] and touching y-axis, is

A.            \[{{x}^{2}}+{{y}^{2}}-4x-6y-9=0\]
B.            \[{{x}^{2}}+{{y}^{2}}-4x-6y+9=0\]
C.            \[{{x}^{2}}+{{y}^{2}}-4x-6y+3=0\]
D.            None of these
Answer» C.            \[{{x}^{2}}+{{y}^{2}}-4x-6y+3=0\]


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