The locus of the centre of a circle whic...

The locus of the centre of a circle which touches the circles `|z-z_(1)|= a and |z-z_(2)|=b` externally (`z, z_(1) and z_(2)` are complex numbers) will be

A

an ellipse

B

a hyperbola

C

a circle

D

None of these

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The correct Answer is:

B

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