#1 Yuan Dynasty unified China after a period of more than 300 years. ...
#2 The first paper currency to be used predominantly was Yuan's official banknote Chao.
#3 Yuan astronomer Guo made the most accurate calendar built till then in China.
#5 Novel was developed as a literary form.
Answer:
lower inflation, end a recession
Explanation:
It was primarily the Industrial Revolution that caused the nations cities to grow in population at the end of the nineteenth century, since this brought about the creation of a massive amount of factories, all of which required large number of laborers who almost all lived in the cities.
Price discrimination is the answer i believe