In emergency electrical configuration, which Electronic Instrument System (EIS) displays receive power?

In emergency electrical configuration, the primary focus is on ensuring that the most critical flight information remains available to the pilots. In this configuration, power is prioritized for essential displays that help pilots operate the aircraft safely.

The Primary Flight Display (PFD) 1 and Navigation Display (ND) 1 are designed to show crucial flight and navigation information, making them essential during emergencies. The upper ECAM display provides vital system status and alerts, allowing the crew to monitor the aircraft's condition and manage any in-flight anomalies.

Choosing this combination ensures that the crew has access to the most important information needed for safe operation while operating under reduced electrical power conditions. The other options do not align with the priorities established for emergency procedures, as they either focus on secondary displays or do not include the critical components that keep the flight crew informed during emergencies.