How did Mongol conquest reshape China's political geography and empire?

How did Mongol conquest reshape China's political geography and empire?

• A. It created the Yuan Dynasty, integrated China into a broader Mongol empire, and intensified cross-continental trade and governance under a hybrid system
• B. It consolidated the Song dynasty under centralized rule
• C. It fragmented China into rival kingdoms
• D. It had little impact on governance or trade

Answer: (C)