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Which one of the following is a correct statement? 

A)  "Bt" in "Bt-cotton" indicates that it is a genetically modified organism produced through biotechnology.                                                                

B)  Somatic hybridisation involves fusion of two complete plant cells carrying desire genes,

C)  The anticoagulant hirudin is being produced from transgenic Brassica napus seeds.

D)  "Flavr savr" variety of tomato has an enhanced production of ethylene which improve; its taste.