Question: Which of the following SPID values is applicable for both E-UTRA/E-UTRAN and 5GC?
Option 1: SPID = 100
Option 2: SPID = 200
Option 3: SPID = 250
Option 4: SPID = 253
Explanation: The correct answer is Option 4 because the text states that from the SPID reference values, only the SPID=253 also applies for 5GC. This indicates that SPID=253 has a specific significance in both E-UTRA/E-UTRAN and 5GC contexts.