Question: What is the nature of UE support for protection against improper reselection to GERAN/UTRAN as per E-UTRA specifications?
Option 1: Mandatory for all UEs operating in E-UTRA networks
Option 2: Optional for UEs, dependent on manufacturer implementation choices
Option 3: Conditional, based on the presence of specific frequency bands
Option 4: Excluded for UEs prioritizing low-power mode operations
Explanation: The correct answer is Option 2 because E-UTRA specifications leave it to UE manufacturers' discretion to implement protection against improper reselection to GERAN/UTRAN, allowing varied implementation strategies based on device capabilities and target market requirements.