When an abundance of lactose is present in a bacterial cell then a. lactose will block the action of rna polymerase, prohibiting of the transcription of the gene. b. enhancers will be triggered to speed up the process of mrna production. c. the lac operon will be inhibited and no lactose will need to be produced via translation. d. lactose will bind to the repressor, allowing the gene coding for the enzyme lactase to be transcribed.