The given figure shows the cloning vector $pBR322$. Identify the labels $A, B, C,$ and $D$ correctly.

  • A
    $A \to \text{Hind III}, B \to \text{EcoR I}, C \to \text{amp}^R, D \to \text{ori}$
  • B
    $A \to \text{Hind III}, B \to \text{Bam HI}, C \to \text{kan}^R, D \to \text{amp}^R$
  • C
    $A \to \text{Bam HI}, B \to \text{Pst I}, C \to \text{ori}, D \to \text{amp}^R$
  • D
    $A \to \text{EcoR I}, B \to \text{Bam HI}, C \to \text{amp}^R, D \to \text{ori}$

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