Question: What is the requirement for a User Equipment (UE), including those of any UE-Category-NB, to support the reception of SystemInformationBlockType16 in an E-UTRA network?
Option 1: Mandatory for all UEs, with additional requirements for UE-Category-NB.
Option 2: Mandatory only for UEs of specific categories, excluding UE-Category-NB.
Option 3: Conditionally mandatory based on the network's deployment scenario.
Option 4: Optional for all UEs, including those of any UE-Category-NB.
Explanation: The correct answer reflects the flexibility in the standard for UEs (including the narrowband categories) to optionally support SystemInformationBlockType16 reception. This is important because it allows for a range of device capabilities within the network, accommodating various use cases and device types without mandating unnecessary features for all devices, especially considering the potential resource constraints of NB-IoT (Narrowband Internet of Things) devices categorized under UE-Category-NB.