If $\log x : \log y : \log z = (y - z) : (z - x) : (x - y)$,then

  • A
    $x^y \cdot y^z \cdot z^x = 1$
  • B
    $x^x \cdot y^y \cdot z^z = 1$
  • C
    $\sqrt[x]{x} \cdot \sqrt[y]{y} \cdot \sqrt[z]{z} = 1$
  • D
    None of these

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