A)RNAs of different genes can be transcribed off either DNA strand,but always 5' to 3'. B)RNAs of different genes can be transcribed off either DNA strand,but always 3' to 5'. C)The RNAs of all genes are synthesized 5' to 3' off the same DNA strand. D)The RNAs of all genes are synthesized 3' to 5' off the same DNA strand. E)Different genes can be transcribed off either strand,some in the 5' to 3' direction and some in the 3' to 5' direction.