Stool bacteriology of a person, who works as chef at restaurant and exhibits no clinical manifestations of the disease, resulted in growth of small colonies with a metallic sheen on a bismuth sulfite agar. What microorganisms are most likely in this case?

• A. Shigella
• B. Salmonella
• C. Escherichia
• D. Staphylococci
• E. Streptococci