<span>increased politicial influence in the north
</span>
I believe it’s answer B, some context would be great though
Census is the complete count of a population, including place of residence.
#1) To have a job in the Koryo government, a man had to prove that he was?
Answer: To have a job in the Koryo government, a man had to prove that he was well trained in Confucianism. But in spite of this commoners had few opportunities in the government because of class prejudices and petty restrictions.
I hope it helps, Regards.
