Answer:
The correct option is B) The population of the capital reached over a million, and the Safavid empire flourished.
Explanation:
Shah Abbas was a powerful ruler of Iran who strengthened the economy by forming trade relationships between Asia and Europe.
Shah Abbas is known to strengthen the Safavid dynasty. Centralizing the government enabled Shah Abbas to revive the glory of Ancient Persia. It enabled him to establish the Safavid Empire and to dominate the Middle East. The population of the cities which he declared the capitals increased in no time.