<prompt>  A major step in the pathogenesis of listeriosis is -The formation of antigen-antibody complexes with resultant complement activation and tissue damageThe release of hyaluronidase by L. monocytogenes, which contributes to its dissemination from local sitesThe antiphagocytic activity of the L. monocytogenes capsuleThe survival and multiplication of L. monocytogenes within mononuclear phagocytes and host epithelial cells 