A Region of a Chromosome Contains Two Strands of DNA,yet

Multiple Choice

A region of a chromosome contains two strands of DNA,yet only one is used to transcribe a gene because

A) RNA polymerase binds to the promoter, which precedes the gene only on the template strand of DNA.
B) the start of transcription is random along the chromosome and doesn't always occur on a gene.
C) RNA polymerase binds to the terminator, stopping transcription on one strand of DNA.
D) all genes are found on the same strand of DNA in a chromosome.
E) both strands are transcribed, but only one strand of DNA contains a reading frame.