Question: What is the primary purpose of the NAS container for PS HO information element in a PS handover to A/Gb mode?
Option 1: To indicate the MS's capability to support PS handover
Option 2: To provide NAS specific information for the PS handover to A/Gb mode
Option 3: To request the MS to perform a PS handover to UTRAN mode
Option 4: To acknowledge the receipt of a PS HO command message
Explanation: The correct answer is Option 2 because the NAS container for PS HO information element is specifically designed to provide NAS specific information for the PS handover to A/Gb mode, as stated in the text. This information element plays a crucial role in facilitating the PS handover process by providing necessary details to the MS.