Kubilai Khan's Attempted Invasion of Japan Was Eventually Thwarted by

Kubilai Khan's attempted invasion of Japan was eventually thwarted by

A) earthquakes that shook the capital city.
B) a typhoon that cost him most of his men and his ships.
C) a volcano that erupted near the coast, burning his boats with hot lava.
D) a tsunami that drowned half his army.
E) a mutiny among his men, who were afraid of the islands' spirits.