The equation of the circle passing through the origin and cutting the circles $x^{2}+y^{2}+6 x-15=0$ and $x^{2}+y^{2}-8 y-10=0$ orthogonally is
- A$2 x^{2}+2 y^{2}-5 x+10 y=0$
- B$x^{2}+y^{2}-2 x+5 y=0$
- C$2 x^{2}+2 y^{2}-10 x+5 y=0$
- D$x^{2}+y^{2}-5 x+2 y=0$
✓ Correct answer: B
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