$a, g, h$ are the arithmetic mean,geometric mean,and harmonic mean between two positive numbers $x$ and $y$ respectively. Identify the correct statement among the following:

  • A
    $h$ is the harmonic mean between $a$ and $g$
  • B
    No such relation exists between $a, g$ and $h$
  • C
    $g$ is the geometric mean between $a$ and $h$
  • D
    $a$ is the arithmetic mean between $g$ and $h$

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