Question: In a 3GPP network, where is the event for Mobile-Originated (MO)-SMS generated, and at what trigger point, according to one of the dependent national requirements?
Option 1: In the SMSC, when the SMS is successfully delivered to the target MS.
Option 2: In the 3G MSC Server, when it receives notification that the SMSC successfully received the SMS.
Option 3: In the Target MS, upon successful receipt of the SMS from the 3G MSC Server.
Option 4: In the Non-Local ID target's party, when the SMS is sent to the SMSC.
Explanation: According to the provided context, for MO-SMS, one of the national requirement-dependent trigger points for event generation in the 3G MSC Server is when it receives notification that the SMSC successfully received the SMS. This highlights the network's capability to track and log events at different stages of message delivery, ensuring compliance with various legal and regulatory requirements across nations.