Viroids differ from viruses in having

  • A
    $DNA$ molecules without protein coat
  • B
    $RNA$ molecules with protein coat
  • C
    $RNA$ molecules without protein coat
  • D
    $DNA$ molecules with protein coat

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Assertion $A$: Viruses are considered as a link between living and non-living organisms.
Reason $R$: Viruses are non-living,but they are obligate parasites in living cells.
Which option is correct for Assertion $A$ and Reason $R$?

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