Hurry please i just need the answer

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen

Is this mrna or rna need need the answer in a hurry

18. how do the cells in meiosis differ from the cells in mitosis?