If $a+b+c=0,$ then the value of $\left(\frac{a^{2}}{b c}+\frac{b^{2}}{c a}+\frac{c^{2}}{a b}\right)$ is:

  • A
    $1$
  • B
    $0$
  • C
    $-1$
  • D
    $3$

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