Under the Cybersecurity Law of the PRC and the Data Security Law, where must online ride-hailing operational data and personal passenger information collected in China be stored?

1. On public overseas cloud servers accessible to international marketing agencies
2. Within the territory of the People's Republic of China (境内存储), with strict restrictions on cross-border data transfers
3. Exclusively on portable USB flash drives carried by individual drivers
4. In foreign embassies located in neighboring countries