The correct option is A Prokaryotes
Polycistronic mRNA is a mRNA that encodes several proteins and is characteristic of many bacterial (prokaryotes) and chloroplast mRNAs. Polycistronic mRNA carries several open reading frames (ORFs), each of which is translated into a polypeptide. Polycistronic mRNAs consist of a leader sequence which precedes the first gene. The gene is followed by an intercistronic region and then another gene.