$A$ big water drop is formed by the combination of $n$ small water droplets of equal radii. The ratio of the surface energy of $n$ droplets to the surface energy of the big drop is

  • A
    $\sqrt{n}: 1$
  • B
    $\sqrt[3]{n}: 1$
  • C
    $n: 1$
  • D
    $n^2: 1$

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