Question: What is a prerequisite for a User Equipment (UE) to support UL resource reservation with slot-level granularity on non-anchor carriers, as indicated by the `slotSymbolResourceResvUL-r16` field?
Option 1: The UE must support at least one of the FDD or TDD duplex modes.
Option 2: The UE must be capable of operating in Band 1 (IMT) exclusively.
Option 3: The UE must also indicate support for `subframeResourceResvUL-r16` and support any `ue-Category-NB`.
Option 4: The UE needs to have a minimum of two receiver branches for diversity.
Explanation: This is correct because, as specified, a UE indicating support of `slotSymbolResourceResvUL-r16` must also indicate support of `subframeResourceResvUL-r16`, and this feature's applicability is contingent upon the UE supporting any `ue-Category-NB`, highlighting the interdependence of these capabilities for efficient resource management in scenarios like NB-IoT coexistence with NR.