How many safety information cards should be present in the emergency row?

The correct choice indicates that there needs to be one safety information card for each seat present in the emergency row. This approach ensures that all passengers seated in this critical area have immediate access to vital safety information, which includes instructions on evacuation procedures and the operation of emergency exits.

Having a dedicated card for each seat allows individuals to familiarize themselves with safety measures before an emergency may occur. It emphasizes personal responsibility and ensures that everyone can easily reference the information as needed, especially in a high-stress situation. This setup facilitates a quick and efficient understanding of how to respond in an emergency, ultimately contributing to the overall safety of all occupants on the aircraft.

In contrast, other options suggest varying quantities based on rows, exits, or sides, which could lead to situations where not everyone has access to important safety information, potentially undermining the safety protocol designed to help passengers during emergencies.