The decline of the Safavid empire was due to
A. The loss at the Battle of Chaldiran weakened the empire, which will lead to its demise
B. The conquest of the Ottoman empire, which made the Safavids too big to be able to control
C. The changing of trade routes cost the Safavids nearly all the revenue they needed to run the empire
D. Mongol conquering of Central Asia threatened Safavid rule