Which of the following is true about the sighting of rodents?

Seeing rats during the day can indeed indicate a severe infestation. Rodents are typically nocturnal creatures, meaning they are most active during nighttime hours. If they are observed during the day, it often signifies that their normal hiding places are overcrowded or that food sources are scarce, forcing them to search for sustenance in daylight, which is generally riskier for them. This visible activity can therefore alert food handlers and pest control professionals to the seriousness of the infestation, allowing for a swift and effective response to manage the pest problem.

In contrast, other options do not accurately reflect the significance of rodent sightings. A minor infestation is generally not indicated by visible daytime activity of rats; instead, such sightings can point to a more serious underlying issue. While some rodents may be seen at night, daytime sightings are atypical and concerning. Moreover, witnessing rodents would have a considerable impact on pest control efforts, as it emphasizes the urgency needed in addressing the infestation effectively.