Which of the following statements is an example of how confucius's teachings were used in the han dynasty?

a. the han emperors demanded respect from their subjects while forcing them to labor on large projects.

b. the han emperors chose smart, virtuous men to work in the government.

c. the han developed a civil service where "who you knew" was more important than "what you knew."

d. han emperors lived lavish lives while disregarding the advice of scholars.