Question: Which of the following events can be reported to the UICC for a USIM with support for classes "e" and "t" but not class "q"?
Option 1: Network Rejection and CSG cell selection
Option 2: Incoming IMS Data and IMS Registration
Option 3: Data Connection Status Change and CAG cell selection
Option 4: Incoming IMS Data, IMS Registration, and Data Connection Status Change
Explanation: The correct answer requires understanding the conditions under which specific events are reported to the UICC. Since the USIM supports classes "e" and "t" but not class "q", we can analyze each option: Option 1 is incorrect due to CSG cell selection requiring class "q" support. Option 2 is partially correct but doesn't include all possible events for the given classes. Option 3 is incorrect because CAG cell selection requires unsupported class "ag". Option 4 correctly identifies all reportable events with the specified class support: Incoming IMS Data, IMS Registration (classes "e" and "t"), and Data Connection Status Change (class "e").