What characterizes a Still Alarm?

A Still Alarm is characterized by requiring an immediate response but may not be of high urgency. This type of alarm is typically used when there is suspicion of a fire or an incident that requires the presence of fire personnel without the immediate danger typically associated with a higher urgency call.

When a Still Alarm is activated, it signals firefighters to proceed to the scene to assess the situation. While it is crucial for firefighters to respond quickly, the urgency level might not demand an all-hands alert or a high-priority emergency response, which would involve additional resources and personnel.

The other descriptions do not accurately reflect the nature of a Still Alarm. It does involve the potential for urgency in responding to the incident, but it does not mean that firefighters or emergency responders will encounter a fully developed fire or other immediate threats upon arrival. This balance makes option B the most fitting definition of a Still Alarm.