Enterprises owned by the government in China are known as :

State owned enterprises

The correct answer is option (4) : State owned enterprises

Enterprises owned  by the government in China are known as state-owned enterprises (SOEs). These entities are directly owned or controlled by the government, and they play a significant role in the Chinese economy. State-owned enterprises exist, in various sectors and industries, contributing to the overall economic development and serving strategic national interests.

In India we call such enterprises as public sector enterprises.