The correct option is B rRNA
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 the form of triplets in the mRNA and transfer the appropriate amino acid to a growing polypeptide chain during protein synthesis. Ribosomal RNAs (rRNAs) are structural constituents of ribosomes that provide the site for protein synthesis which makes them the most abundant form, 80% of total cellular RNA, of RNA. To code and produce all of the proteins in cells, a large number of rRNA are required. They are found associated with ribosomes and serve to translate the genetic information of mRNA to produce proteins.