How did the Tang people gain the Mandate of Heaven? Song rulers grew weak and quarreled among themselves.

Arab traders took over the Silk Road trade, which undermined the Tang economy.

Tang invaders from the far north overthrew the Sui dynasty.

A Sui official led a rebellion that caused the Sui dynasty to collapse.

Hich answer supports the statement, "the state constitution is more detailed than the u. s. constitution"? a) the u. s. constitution was created after state constitutions had been established. b) the u. s. constitution only exists because the state constitutions allowed it to be created. c) the articles in the state constitution do not deal with amendments like the u. s. constitution does. d) the articles in the state constitution deal with more specific issues than does the u. s. constitution.