Which of the following are common sources of food poisoning bacteria?

• A. Sunlight and wind
• B. Temperature-controlled refrigerators
• C. People, water, raw foods, pests, soil, dust, waste and unfit food
• D. Only meat products

Answer: (C)

Bacteria that cause food poisoning come from everyday sources that can reach food during handling, preparation, and storage. The best answer lists people, water, raw foods, pests, soil, dust, waste and unfit food because these are the main ways contamination can be introduced into food: human contact and surfaces, contaminated water, raw ingredients that may carry bacteria, pests that can carry or spread organisms, dirt and dust, and spoiled or improperly stored waste and food. These sources explain how bacteria move from the environment to food and why prevention focuses on hygiene, proper storage, and pest control.

Sunlight and wind aren’t sources of bacteria themselves; they’re environmental factors that can influence bacteria. Temperature-controlled refrigerators don’t supply bacteria either; they slow growth when used correctly. And restricting to meat products misses the reality that bacteria can come from many foods and places, not just meat.