A. The Confucian civil service exam was replaced by exams used in West Africa.
Explanation:
During the Song (Sung) Dynasty (960-1276), innovation was profoundly cutting-edge in fields as differing as farming, iron-working, and printing. To be sure, researchers today discuss a Song financial transformation.
The populace developed quickly amid this time, and an ever increasing number of individuals lived in urban areas.
The Song system of government was also advanced for its time. The upper-dimensions of the administration were staffed by very instructed scholar-officials selected through competitive written examinations.
