<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the second one, having to do with that fact that each faced foreign invasions, since neither had in place a sufficient defense system. </span></span>
Ll give u the answer when i finish my test
Answer:
B:made a significant contribution to the civil service examination system.
Explanation:
Empress Wu was the only female emperor in the history of China. She reigned during the Tang Dynasty killed her children in order to become China's Only Female Ruler, she helped to improve the lives of the peasants by lowering taxes, building new public works, improving farming techniques and contribution to the civil service examination system(Chinese imperial examinations).
