Final answer:
The three main types of RNA are mRNA, tRNA, and rRNA. OrRNA is not one of the three main types of RNA.
Step-by-step explanation:
The answer to the question is OrRNA.
There are three main types of RNA: mRNA (messenger RNA), tRNA (transfer RNA), and rRNA (ribosomal RNA).
Each type of RNA has a specific role in protein synthesis. mRNA carries the genetic information from DNA to the ribosomes, tRNA transfers amino acids to the ribosomes for protein assembly, and rRNA forms the structure of the ribosomes.
Learn more about RNA types