Question: What is the primary purpose of the EFePDGSelectionEm file on a Universal Subscriber Identity Module (USIM) application?
Option 1: To store subscriber's preferred network operator list for roaming.
Option 2: To contain Evolved Packet Data Gateway (ePDG) selection information specifically for Emergency Services.
Option 3: To manage Quality of Service (QoS) settings for video call services.
Option 4: To hold a list of forbidden Public Land Mobile Networks (PLMNs) for the subscriber.
Explanation: The EFePDGSelectionEm file is specifically designated to contain ePDG selection information utilized during Emergency Services, ensuring seamless and prioritized connectivity for emergency communications.