How did the Tang people gain the Mandate of Heaven?

A. Song rulers grew weak and quarreled among themselves.

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

C. Tang invaders from the far north overthrew the Sui dynasty.

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

Question

How did the Tang people gain the Mandate of Heaven?

A.  Song rulers grew weak and quarreled among themselves.

 B. Arab traders took over the Silk Road trade, which undermined the Tang economy.

 C. Tang invaders from the far north overthrew the Sui dynasty.

 D. A Sui official led a rebellion that caused the Sui dynasty to collapse.

solomonzelman · Answer

http://openstudy.com/study#/updates/538f20bee4b06d011b1d2f25 says that B or C, but I personally don't know

anonymous · Answer

b