Identify the correct sequence of steps in the Polymerase Chain Reaction $(PCR)$.

  • A
    Extension $\rightarrow$ Denaturation $\rightarrow$ Annealing
  • B
    Extension $\rightarrow$ Annealing $\rightarrow$ Denaturation
  • C
    Denaturation $\rightarrow$ Annealing $\rightarrow$ Extension
  • D
    Denaturation $\rightarrow$ Extension $\rightarrow$ Annealing

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