Question: In a Mission Critical (MC) system's application plane, where are the detailed descriptions of functional entities for each MC service typically found?
Option 1: Within the overall MC System Architecture document
Option 2: In a dedicated Application Plane Specification document
Option 3: In the corresponding MC Service specific Technical Specification (TS)
Option 4: Across multiple 3GPP Release documents, requiring cross-referencing
Explanation: This is correct because, for each Mission Critical (MC) service, detailed descriptions of functional entities are contained within the corresponding MC Service's own Technical Specification, allowing for service-specific tailoring and clarity.