Which of the following statements is correct in the context of observing $DNA$ separated by agarose gel electrophoresis?

  • A
    $DNA$ can be seen in visible light
  • B
    $DNA$ can be seen without staining in visible light
  • C
    Ethidium bromide stained $DNA$ can be seen in visible light
  • D
    Ethidium bromide stained $DNA$ can be seen under exposure to $UV$ light

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