Under which one of the following conditions does the circle \[{{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0\]meet the x-axis in two points on opposite sides of the origin?

Under which one of the following conditions does the circle \[{{x}^{2}

1.	Under which one of the following conditions does the circle \[{{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0\]meet the x-axis in two points on opposite sides of the origin?
A.	\[c>0\]
B.	\[c<0\]
C.	\[c=0\]
D.	\[c\le 0\]
Answer» C. \[c=0\]

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Under which one of the following conditions does the circle \[{{x}^{2}}+{{y}^{2}}+2gx+2fy+c=0\]meet the x-axis in two points on opposite sides of the origin?

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