Use the quote below to answer the following question: "Being good as a son and obedient as a young man is, perhaps, the root of a man's character." Public Domain What does this passage describe?

A the Confucian idea of filial piety

B one of the Five Cardinal Virtues

C the Dao principle of harmony with nature

D one of the codes in Legalism

And can you do Which dynasty expanded the trade routes of the Silk Road?