Under MOT Order 2021 No. 16, what should a taxi driver do if a passenger leaves behind official government documents, passports, or confidential business files in the vehicle?

1. Promptly register the items, contact the passenger if contact details exist, or immediately surrender them to taxi fleet dispatch or the nearest public security police station
2. Post photographs of confidential documents online to find the owner faster
3. Throw away the documents because papers have no cash resale value
4. Demand a RMB 1,000 retrieval fee before returning the passport