The Chinese Civil Service Examination System

The Chinese civil service examination system

A) included a quota system to insure that over one-half of those who took it were peasants.
B) insured that those passing all levels of the exams would receive life-long pensions.
C) was designed to keep the "scholar-gentry" from taking the advanced examinations.
D) was no longer used after the early 600s.
E) was unable to solve the problem of officials using their positions to help their relatives.