Which of the following must happen for transcription to be initiated?

a. DNA polymerase must have access to the DNA double helix and also must be capable of binding to the gene's promoter. b. RNA polymerase must have access to the DNA double helix and also must be capable of binding to the gene's promoter. c. DNA polymerase must have access to the RNA and also must be capable of binding to the gene's promoter. d. DNA ligase must have access to the DNA double helix and also must be capable of binding to the gene's promoter. e. DNA kinase must have access to the DNA double helix and also must be capable of binding to the gene's promoter