Match Column-$I$ with Column-$II$ and select the correct option:
Column-$I$ Column-$II$
$(a)$ $Bt$ Cotton $(i)$ Gene therapy
$(b)$ Adenosine deaminase deficiency $(ii)$ Cellular defense
$(c)$ $RNAi$ $(iii)$ Detecting $HIV$ infection
$(d)$ $PCR$ $(iv)$ $Bacillus$ $thuringiensis$

  • A
    $(iv), (i), (ii), (iii)$
  • B
    $(iii), (ii), (i), (iv)$
  • C
    $(ii), (iii), (iv), (i)$
  • D
    $(i), (ii), (iii), (iv)$

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