Will give !
what is the mandate of heaven and how does it explain the rise/fall of the tang and song dynasties?

“The Mandate of Heaven (天命) was a principle used to justify the power of the emperor of China, as well as explaining suitability for the office. According to this belief, heaven bestows its mandate to a just ruler, the Son of Heaven.

the answer is c.richard m. nixon

- "bill clinton ( the 42nd u.s. president, served in office from by low unemployment, declining crime rates and a budget surplus. during clinton's second term, the u.s. economy was healthy, unemployment was low and the nation experienced a major technology boom and the rise of the internet."