Final answer:
Emperor Taizong stabilized China's government by reviving China's official bureaucracy.
Step-by-step explanation:
Ruling during the Tang Dynasty, Emperor Taizong stabilized China's government by reviving China's official bureaucracy. The Tang government was based on the Qin-Han model of bureaucracy, where a professional administrative class of "scholar-officials" held key roles in the government. These officials were selected through a rigorous examination process, ensuring their qualifications and merit. By reviving and relying on this bureaucratic system, Emperor Taizong created a more stable and effective government structure.