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The equation x^2+y^2+2x-4y+5=0 represent...

The equation `x^2+y^2+2x-4y+5=0` represents a. a point b. a pair of straight lines c. a circle of non zero radius d. none of these

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`x^2+y^2-2x+4y+5=0`
`(x-1)^2+(y+2)^2-5+5=0`
`(x-1)^2+(y+2)^2=0`
Since, radius is `0`, hence its a point
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