Which of the Following Statements About the Civil Service Examination

Which of the following statements about the civil service examination under the Tang dynasty is correct?

A) It was eliminated because it allowed government officials to gain authority independently of the imperial family.
B) It allowed commoners from southern China to outperform the aristocratic families of northern China.
C) It demonstrated to the poor the futility of seeking education since they had no chance of obtaining government office.
D) It increased the influence of Buddhism since Buddhist texts were at the heart of the curriculum.