What are the first 12 nucleotides in the sequence of the corresponding region of an rna transcript if the promoter in this molecule is located at the position designated 1?
a. 5'-cguaacccguag-3'.
b. 5'-cuacggguuacg-3'.
c. 5'-gcauugggcaua-3'.
d. 5'-cgcauuuggcau-3'.
e. 5'-uaugcccaaugc-3'.
f. 5'-augccaaaugcg-3'.