Answer:
C. The government used civil service examinations based on teachings of Confucianism.
Step-by-step explanation:
Confucian principles were highly focused on in the Han Dynasty. They viewed it as an ultimate "truth" and were incorporated into many aspects of their state. To ensure that all of their civil servants had a good knowledge and understanding of these values and principles, the Han Dynasty created a set of civil service examinations based on Confucian teachings. This ensured that the civil servants were well informed in Confucian teachings and helped to uphold the values and principles of Confucianism.