<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 18-year-old college freshman scrapes his knee after falling from his bike. He applies some topical neomycin because he knows that it has antibiotic properties. As he is also in biology class, he decides to research the mechanism of action of neomycin and finds that it interferes with formation of the 30S initiation complex in bacteria. What is the messenger RNA mRNA signal recognized by the 30S ribosomal subunit necessary for the initiation of translation?? A: Shine-Dalgarno sequence, B: 5 methyl-guanosine cap, C: Polyadenosine tail, D: Kozak sequence, E: UAA, UAG, and UGA codons,  <response>: This is a question about the mechanism of action of the antibiotic neomycin and the mRNA signals involved in translation initiation. Neomycin works by interfering with the formation of the 30S initiation complex in bacteria. This complex consists of the 30S small ribosomal subunit, the initiator tRNA, and the mRNA start codon. The key mRNA signal recognized by the 30S subunit is the Shine-Dalgarno sequence, which base pairs with the 16S rRNA of the 30S subunit to properly position the start codon in the ribosomal P site. The other options are not involved in prokaryotic translation initiation. The 5 cap and polyA tail are eukaryotic mRNA modifications. The Kozak sequence helps position the start codon in eukaryotes. Stop codons signal translation termination, not initiation.A: Shine-Dalgarno sequence 