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.
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.
The correct anwer is C. Hittites and Aryans. Both groups of people are believed to have begun their expansion from territories now belonging to or close to Russia. Hittites originally occupied land near the Sea of Azov (present day Ukraine) while Aryans or Indo-Aryans were present in the area north of the Caspian Sea (nowadays Russia is a coastal state of that sea).
