Cultivation of $Bt$ Cotton has been much in the news. The prefix "$Bt$" means

  • A
    $Barium$-treated cotton seeds
  • B
    Bigger thread variety of cotton with better tensile strength
  • C
    Production by "biotechnology" using restriction enzymes and ligases
  • D
    Carrying an endotoxin gene from $Bacillus$ $thuringiensis$

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