Final answer:
Contaminated food can often look, taste, and smell like safe food, making it difficult to distinguish based on sensory properties alone. Food safety depends on proper handling and preventing cross-contamination between foods. The contamination does not necessarily affect the taste or look of the food.
Step-by-step explanation:
Contaminated food often looks, tastes, smells the same as b) Safe food. Contamination does not necessarily change the sensory properties of the food; this is why it's difficult to tell if food is contaminated just by examining it.
Foodborne disease is commonly caused by bacteria like Norovirus, Salmonella, Clostridium perfringens, and Campylobacter which can be present in a variety of foods including raw or undercooked ground beef, raw vegetables, and contaminated water. Proper handling like washing hands, preventing cross-contamination, and maintaining correct temperatures is essential for food safety.