Under what conditions is it appropriate to split the search during a fire incident?

The correct choice highlights the importance of favorable conditions when considering splitting the search during a fire incident. When fire crews have a solid fire attack in place, this indicates that they have effectively contained the fire or are managing it in a way that allows for enhanced safety and operational effectiveness. A comfortable crew means that the firefighters are well-rested, physically ready, and mentally prepared to engage in demanding tasks, such as conducting searches in potentially hazardous environments.

Splitting the search can be particularly advantageous when conditions are controlled, as it enables firefighters to cover more ground and potentially locate victims more quickly, increasing their chances of survival. This decision should always be balanced against the various risks associated with fire situations.

While the other choices point to specific challenges or conditions that necessitate caution, they do not provide an optimal scenario for splitting the search. Limited visibility, large fire presence, and high winds introduce significant risks that complicate operations. Safety must always come first, and splitting the search may not be viable under these adverse conditions. Therefore, option B represents a scenario where splitting the search is not just possible but strategically sound.