During the Han Dynasty of China, Emperor Wudi decided China should be a Confucian state and not a Taoist state. This dramatically changed the way government operated. What was one result of the change to Confucianism? A.
Government officials had to be more responsive to the people.
B.
A civil service system for government workers began.
C.
Taxes were reduced and government had less control.
D.
The Chinese became under the control of their foreign neighbors.

B: A civil service system for government workers began.

Explanation:

With the arrival of the Emperor Han Wu Di, there comes the change of the state politics, the emperor takes the directive of his empire based on the new norm to eliminate all the doctrines, only to respect the Confucianism. Because of the new approach, the relation between the emperor and the people, they are considered as if it was the sky and the land, one is noble and other one is low. This political change had a great influence in the history of China, managing supporting the system of the feudal society during two thousand years

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.