Correct answer choice is :
B) Trade with Europe flourished.
Step-by-step explanation:
The Mongol Empire beneath Genghis Khan began the triumph with small-scale attacks into Western Xia in 1205 and 1207. By 1279, the Mongol leader Kublai Khan had organized the Yuan dynasty in China and broke the last Song resistance, which indicated the onset of all of China under the Mongol Yuan rule. This was the first time in antiquity that the whole of China was captured and consequently ruled by a foreign or non-native ruler.