Supera ntigens areA. body tissues that the immune system mistakes as foreign.B. cell markers found in some member of a species but not in other members-C. bacterial toxins that activate T cells at a 100 times greater rate than other antigens.D. those that evoke allergic reactions.E. None of the choices is correct

The immune systems is sorted out into discrete compartments to give the milieu to the improvement and support of viable invulnerability. Those two covering compartments: the lymphoid and reticuloendothelial frameworks (RES) house the essential immunologic cells, the leukocytes. Leukocytes got from pluripotent foundational microorganisms in the bone marrow during postnatal life incorporate neutrophils, eosinophils, basophils, monocytes and macrophages, common executioner (NK) cells, and T and B lymphocytes
Cells of the immune system intercommunicate by ligand-receptor collaborations among cells and additionally by means of emitted particles called cytokines. Cytokines delivered by lymphocytes are named lymphokines (i.e., interleukins and interferon-γ) and those created by monocytes and macrophages are named monokines
Hence, the right answer is option "C"