Final answer:
The correct order of type 2 pol III promoters is B and C regions, which is option C for RNA polymerase III to effectively recognize and initiate transcription.
Step-by-step explanation:
The order of type 2 pol III promoters is B and C regions, meaning the correct answer to the student's question would be option C. The type 2 pol III promoter system is important for the transcription of certain small RNA molecules, such as tRNA and some rRNA, in eukaryotic organisms. These promoters are recognized by RNA polymerase III, and proper distancing and sequences of the B and C regions are essential for optimal binding and transcription initiation. The B region is often referred to as the B Box, while the C region is known as the C Box, both of which are sequences within the DNA that are necessary for the polymerase to recognize and bind to the promoter area effectively.