Question: What is a prerequisite for a User Equipment (UE) to support DL resource reservation with slot/symbol-level granularity in coverage enhancement mode A, as indicated by the `slotSymbolResourceResvDL-CE-ModeA-r16` field?
Option 1: Support for NR (New Radio) in standalone mode
Option 2: Capability for LTE (Long Term Evolution) in FDD (Frequency Division Duplexing) mode only
Option 3: Indication of support for `ce-ModeA-r13`
Option 4: Implementation of 5G Core Network architecture
Explanation: For a UE to support DL resource reservation with slot/symbol-level granularity in coverage enhancement mode A, it must also indicate support for `ce-ModeA-r13`, ensuring compatibility and proper functioning of the enhanced coverage features.