During the $Na^+ - K^+$ pump mechanism,which of the following occurs?

  • A
    $3Na^+$ and $2K^+$ are transported.
  • B
    $1Na^+$ and $2K^+$ are transported.
  • C
    $3Na^+$ and $3K^+$ are transported.
  • D
    It depends on the requirement of the cell.

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