During transcription in eukaryotes, a type of RNA polymerase called RNA polymerase II moves along the template strand of the DNA in the 3'→5' direction. However, for any given gene, either strand of the double-stranded DNA may function as the template strand. For any given gene, what ultimately determines which DNA strand serves as the template strand?a. the base sequence of the gene's promoterb. the location of specific proteins (transcription factors) that bind to the DNAc. which of the two strands of DNA carries the RNA primerd. the location along the chromosome where the double-stranded DNA unwinds