Answer is C......................
The correct answer to this open question is the following.
The changes to Chinese administration and bureaucracy that Song rulers introduced were the following.
The Song dynasty produced changes in ancient China. Its leaders were committed to work and develop notorious advancements such as the use of the compass for exploration, the use of gunpowder to wage war and other uses such as construction, and invested so much in the formation of its standing navy, culture, arts, education, literature, and philosophical studies. Confucianism had a second "fresh air" with the studies of philosophers such as Zhu Xi and Cheng Yi.
Bureaucracy was centralized under the Song dynasty and demanded its bureaucratic officials to work with virtue and high moral. Indeed, they had to pass difficult examinations and evaluations to be part of the Song bureaucratic system of government.
The Song dynasty started in 960 and ended in 1279.
Answer:
The Crisis of the Third Century, also known as Military Anarchy or the Imperial Crisis (235–284 AD), was a period in which the Roman Empire nearly collapsed under the combined pressures of barbarian invasions and migrations into the Roman territory, civil wars, peasant rebellions, political instability (with multiple usurpers competing for power), Roman reliance on (and growing influence of) barbarian mercenaries known as foederati and commanders nominally working for Rome (but increasingly independent), plague, debasement of currency, and economic depression.
The Crisis of the Third Century, also known as Military Anarchy or the Imperial Crisis (235–284 AD), was a period in which the Roman Empire nearly collapsed under the combined pressures of barbarian invasions and migrations into the Roman territory, civil wars, peasant rebellions, political instability (with multiple usurpers competing for power), Roman reliance on (and growing influence of) barbarian mercenaries known as foederati and commanders nominally working for Rome (but increasingly independent), plague, debasement of currency, and economic depression.
The federal government was the George Washington in convention
Due to an increased population size, public health and housing became a big problem, underpaid jobs were common and they were mostly dangerous and surprisingly, it was hard to find jobs of any kind
