Under Genghis Khan, the Mongol Empire was effective at capturing new territory
because:
O A. its armies used a wide variety of strategies.
B. it did not force its subjects to pay any taxes.
O C. its peaceful policies were popular with its neighbors.
O D. it could afford to hire large armies of foreign soldiers.
Owing to their adaptability, their skill in communications, and their reputation for ferocity, the Mongols swept across Eurasia over the 13th and 14th centuries, quickly assembling the largest contiguous empire in world history.
