The correct answer is: (a) RNA polymerase (along with its sigma subunit) can initiate transcription on its own.
More differences between prokaryotic and eukaryotic transcription:
• In prokaryotes transcription occurs in the cytoplasm (unlike in eukaryotes in nucleus) and it is simultaneous with translation,
• In prokaryotes there is only one type of RNA polymerase (in eukaryotes there are three types of them).
• There is no sigma subunit in eukaryotes, the initiation of transcription begins thanks to initiation factors.
• Promoter region in prokaryotes contains pribnow box, while in eukaryotes it contains TATA and CAT box.
Due to the general core field and psychic naturalism measurements of the ice sheet, the top water sheet level would rise approximately 353 meters.
It's quite sad, as the poles require an uneven lining, where if we lose that uneven lining, all warm blooded species are surely doomed.
The answer is Heredity! :)