$\left|\begin{array}{ccc}\frac{-b c}{a^{2}} & \frac{c}{a} & \frac{b}{a} \\ \frac{c}{b} & -\frac{a c}{b^{2}} & \frac{a}{b} \\ \frac{b}{c} & \frac{a}{c} & -\frac{a b}{c^{2}}\end{array}\right|=$
- A0
- B4
- C-1
- D$\frac{a^{2}+b^{2}+c^{2}}{a^{2} b^{2} c^{2}}$
✓ Correct answer: B
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