Question: In the EFOPLMNwACT file, what determines the order in which the preferred PLMNs are listed?
Option 1: Alphabetical order of Mobile Country Codes (MCC)
Option 2: Priority order determined by the operator
Option 3: Chronological order of network deployment
Option 4: Order of Access Technology advancement
Explanation: The correct answer is Option 2 because, according to specifications, the information in the EFOPLMNwACT file is determined by the operator, who defines the preferred PLMNs in priority order. This implies that the operator has control over the sequencing of the listed PLMNs based on their own criteria, with the first record indicating the highest priority and the nth record indicating the lowest.