Identify $A, B, C$ and $D$ parts in this diagram of bacteriophage.

  • A
    $A$ - Head,$B$ - Collar,$C$ - Sheath,$D$ - Tail fibres
  • B
    $A$ - Head,$B$ - Sheath,$C$ - Collar,$D$ - Tail fibres
  • C
    $A$ - Head,$B$ - Collar,$C$ - Tail fibres,$D$ - Sheath
  • D
    $A$ - Head,$B$ - Sheath,$C$ - Tail fibres,$D$ - Collar

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