Q.Consider the following statements regarding the biological mechanism of mRNA vaccines, heavily discussed in recent years: (a) mRNA vaccines inject a small, harmless piece of the actual virus into the body to trigger a robust immune response. (b) The messenger RNA (mRNA) used in the vaccine never enters the nucleus of the human cell and cannot alter or modify the person's DNA. (c) Katalin Karikó and Drew Weissman were awarded the Nobel Prize in Physiology or Medicine (2023) for their discoveries concerning nucleoside base modifications that enabled the development of effective mRNA vaccines. Which of the statements given above are correct?