Which of the following accurately summarizes how a recent archaeological discovery has affected understanding of china's dynasties?

a the discovery thoroughly eliminates doubts about the conflicts that occurred between the xia and the shang to be the first ruling dynasty.

b the discovery illustrates how the story of the xia was used as a foundational
myth, providing the shang with the power of succession.

c the discovery uncovers new information about how the mandate of heaven originated and was used to explain the xia's divine right to rule.

d the discovery partially confirms the story of the xia king and a major flood, suggesting that the dynasty may be more than just myth.