The correct option is C mRNA
Messenger RNAs (mRNAs) specify the amino acid sequence of one or more polypeptides, thus it transfers genetic information from DNA to ribosomes. Transfer RNAs (tRNAs) read the genetic information present in form of triplets in the mRNA and transfer the appropriate amino acid from amino acid pool of cytoplasm to a growing polypeptide chain during protein synthesis. Ribosomal RNAs (rRNAs) are structural constituents of ribosomes that provide the site for proteins synthesis which makes them the most abundant form of RNA. RNA polymerase is an enzyme of RNA synthesis using DNA template. Thus, the correct answer is option C.