Pests are a problem in any food premises. The main problem isAthey smell Bthey spread disease through bacteria and droppings Cthey eat the food Dthey frighten the staff

The main problem with pests in any food premises is B: they spread disease through bacteria and droppings. This can lead to food contamination which is a serious health risk for anyone consuming the food. Pests can carry a range of bacteria and viruses that can cause illness. Their droppings also pose a risk as they can contaminate food and food preparation surfaces. While the other options (A: they smell, C: they eat the food, D: they frighten the staff) can also be issues, the potential for disease spread is the most serious concern.

The main problem with pests in any food premises is B: they spread disease through bacteria and droppings. This is because they can contaminate the food and the environment, leading to potential health risks for both staff and customers. While the other options may also be issues, the spread of disease is the most serious concern.