In what ways did the Han civil service system create a valuable legacy for future governments? Select all that apply.(2 points)
A. It selected the most intelligent and hardworking men and women to fill important jobs.
B. Government jobs were assigned according to merit measured by performance on exams.
C. Members of politically influential or wealthy families were awarded the highest positions.
D. It established a long-lasting civil service system founded on strong Confucian values.