A dispatcher must obtain the following pieces of information during any emergency call:

The correct choice encompasses a comprehensive set of critical information that a dispatcher must acquire during an emergency call. This includes the location of the incident, which is foundational for directing the appropriate response team to the correct site. The nature of the problem provides insight into what type of emergency is occurring, enabling the dispatcher to assess the severity and the necessary response. Obtaining the caller's name and contact number is essential for follow-up communication and for any necessary clarifications during the emergency response. Lastly, understanding the condition at the caller's location allows dispatchers to inform responding units of potential hazards and the situation they may encounter upon arrival.

In contrast, other options lack some of these essential elements. The second choice only mentions location and condition, omitting vital information like the nature of the problem and contact details. The third option focuses solely on the emergency service required, which is important but not as broad as the information in the first choice. The fourth option is also limited because it focuses on just the caller's address and the time, neglecting other crucial aspects that would provide a well-rounded understanding of the situation. Overall, the first choice ensures that dispatchers gather all necessary details for an effective and timely emergency response.