Question: Under what conditions can the `getTPUDLOffset()` method be used to retrieve the TPUDL offset in a SMS TPDU TLV, according to its API definition?
Option 1: Only when the event is `EVENT_FORMATTED_SMS_PP_ENV` or `EVENT_UNFORMATTED_SMS_PP_UPD`.
Option 2: Exclusively for `EVENT_FORMATTED_SMS_PP_UPD` and `EVENT_UNFORMATTED_SMS_CB`.
Option 3: For events including `EVENT_FORMATTED_SMS_PP_ENV`, `EVENT_FORMATTED_SMS_PP_UPD`, `EVENT_UNFORMATTED_SMS_PP_ENV`, and `EVENT_UNFORMATTED_SMS_PP_UPD`.
Option 4: Solely in the context of `EVENT_UNFORMATTED_SMS_CB`.
Explanation: The correct answer reflects the API's defined behavior, highlighting the method's versatility in handling both formatted and unformatted SMS PP environments and updates across a broader set of events.