25. What is the correct order of the following elements in a gene-start codon, stop codon, polyadenylation signal, and promoter? (A) Promoter-start codon-stop codon-polyadenylation signal (B) Promoter-polyadenylation signal-start codon-stop codon (C) Start codon-stop codon-promoter-polyadenylation signal (D) Start codon-promoter-stop codon-polyadenlyation signal