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

AThe Han emperors demanded respect from their subjects while forcing them to labor on large projects.

BThe Han emperors chose smart, virtuous men to work in the government.

CThe Han developed a civil service where "who you knew" was more important than "what you knew."

DHan emperors lived lavish lives while disregarding the advice of scholars.