Which of the following are examples of microbiological hazards?

• A. Glass, screws, stones, hair
• B. Peanuts, tree nuts, sesame seeds, eggs
• C. Sugar, salt, vinegar, oil
• D. Bacteria, Viruses, Moulds, Parasites

Answer: (D)

Microbiological hazards are biological agents that can contaminate food and cause illness or spoilage. They include living microorganisms such as bacteria, viruses, moulds, and parasites. The option listing those four categories is the best fit because it directly names microorganisms that can grow, produce toxins, or cause disease in foods. The other options point to different types of hazards: physical hazards like glass, screws, stones, and hair; chemical hazards represented by substances such as sugar, salt, vinegar, and oil; and a set of foods that aren’t microbiological hazards themselves but could be related to allergens or other concerns.