How can spills contribute to rodent infestations?

Spills can significantly contribute to rodent infestations primarily because they serve as a food source for rodents. When food or liquids are accidentally spilled, they create an easy and accessible food opportunity for rodents that might be nearby. This can encourage rodents to frequent the area more often, as they are naturally drawn to the prospect of easy meals. Over time, if spills occur repeatedly or are not cleaned up properly, a larger population of rodents may establish itself, leading to an infestation.

The other options do not directly address the role of spills in attracting rodents. For instance, while spills may attract other animals, this does not specifically relate to rodents. A clean environment is counterproductive to rodent attraction, and reducing rodent populations through spills is not feasible since spills create a welcoming food source rather than deterring rodents.