An i-RNA molecule is built on the DNA molecule. What will it be if the DNA site has the following nucleotides

An i-RNA molecule is built on the DNA molecule. What will it be if the DNA site has the following nucleotides: A-A-G-T-A-C-T-C-G. Count the total number of nucleotides in the resulting RNA segment. By what principle is RNA built on DNA?

DNA: A-A-G-T-A-C-T-C-G
We build DNA according to the principle of complementarity: T T C A T G A G C
mRNA: A A G U A C U G C
We count the number of letters (this is the number of nucleotides)
there are 9 of them