If $a,b,c$ be positive and not all equal, then the value of the determinant $\left| {\,\begin{array}{*{20}{c}}a&b&c\\b&c&a\\c&a&b\end{array}\,} \right|$ is

  • [IIT 1982]
  • A

    $- ve$

  • B

    $=+ ve$

  • C

    Depends on $a,b,c$

  • D

    None of these

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