China experienced a time of prosperity under the qing dynasty because of

a. communist
c. imperialist
b. socialist
d. confucius

Are these the answer choices you were given? According to my sources, the answer choices should be:
a. increased military technology
b. the population boom
c. imported crops from America
d. all of the above
e. both b and

And the answer would be A!
~{Dunsforhands}