When food is not available to mice that infest a restaurant, what is likely to happen?

When food resources are not available to mice in a restaurant, they will actively seek food elsewhere. Mice are opportunistic feeders, which means they will search for alternative food sources to survive. If their immediate environment does not provide adequate nutrition, they are unlikely to stay in the same location, as this would threaten their survival. This behavior is instinctual, driven by the basic need for sustenance.

In terms of the other options, while mice do breed and can increase their population under favorable conditions, a lack of food availability would not encourage breeding to continue effectively. Remaining in place without sufficient food would also be detrimental to their survival and wouldn’t be a sustainable action. Furthermore, a lack of food likely wouldn't lead to them becoming larger, since adequate nutrition is essential for proper growth and development. Thus, seeking food elsewhere is their most logical response to food scarcity.