Answer:
It was during the Warring States era that what Sima Tan termed the major philosophical schools of China—Confucianism, Legalism, and Taoism—arose, along and so much more.
The answer to this is...
b.) monitoring the railroad freight business.
They were in charge of monitoring specific transportation between different states :)
But when in doubt, always eat a pineapple. :P
The government in China is a communist one.
The leading party is the Chinese Communist Party. However, it is not the old-school communism as was seen in the USSR, but rather a somewhat modernized one that has some capitalistic tendencies.