Lincoln Steffens, Jane Addams, Upton Sinclair, Ida Tarbell, Jacob Riis,
The correct answer is D) Local leaders used bribery to gain power to challenge the throne.
A series of weak emperors affected the Han dynasty in that local leaders used bribery to gain power to challenge the throne.
However, we have to consider that the collapse of the Hang Dynasty in ancient China was the combination of several factors, not just one.
Of course, weak and bad rulers did not have the leadership and vision to maintain the privileged economic and political situation that inherited. Bu also corruption and bribes. There was also the empress's influence in decisions and the eunuchs that lived in the court that considered that they were too young to be the emperors. And of course, let's not forget the importance and consequences of the Yellow Turban Revolt, a peasant rebellion in the year 184.
Its also known as the Stone age.
I believe the answer is C: has an independent political system
Hope this helps you have a great night!!
Good luck