The exfoliative toxins, TSST-1, and the enterotoxins are all superantigens. The genes for these toxins are A: Present in all strains of Staphylococcus aureus B: Widely distributed on the staphylococcal chromosome C: On both the staphylococcal chromosome (TSST-1 and exfoliative toxins) and on plasmids (enterotoxins) D: On the staphylococcal chromosome in a pathogenicity island E: On plasmids