Which of the following did not help to increase Indian Ocean trade between 1200 and 1500?
A. The collapse of the Mongol Empire, which disrupted the overland trade routes
B. Increased demand for luxury goods such as jewels, fine textiles, and precious metals
C. The invention of the astrolabe
D. The construction of larger ships, making shipping cargo more profitable
E. The rising prosperity of Asian, European, and African states, which stimulated expansion
