Which of the following statements is incorrect?

  • A
    $TMV$ has a double-stranded $RNA$ molecule.
  • B
    Most plant viruses are $RNA$ viruses.
  • C
    The bacteriophages are usually double-stranded $DNA$ viruses.
  • D
    Animal viruses are either single or double-stranded $RNA$ or double-stranded $DNA$ viruses.

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