What Factor Allowed Marco Polo and Other Traders to Reach

Multiple Choice

What factor allowed Marco Polo and other traders to reach China in the late thirteenth and early fourteenth centuries?

A) The Mongols had conquered most of the East and were willing to grant Westerners access to China.
B) The crusader armies had conquered much of the Middle East, thereby giving Westerners access to the overland trade routes to the Far East.
C) The growing power of the papacy gave Western merchants and missionaries the financial resources necessary to undertake such long journeys.
D) The Chinese emperors sent envoys to the West to invite merchants to visit the royal court.