Answer:
B. Government jobs were assigned according to merit measured by performance on exams.
C. It established a long-lasting civil service system founded on strong Confucian values.
Step-by-step explanation:
The Han civil service system was one of the most important and more influential developments during the Han dynasty. This system consisted of awarding government jobs based on performance on exams. This was very effective, as it allowed for social mobility. Moreover, it established a strong and stable bureaucracy. The civil service was based on Confucian values, which were spread all over China, contributing to the unification of the country.