Question

A significant example of the interaction among Indian, Arab, and European societies by 1200 c.e. was the transfer of knowledge of
(A) iron and copper mining techniques
(B) the flying shuttle and spinning jenny
(C) the science of optics and lens design
(D) numerals and the decimal system
(E) gunpowder and cannons

Answer 1

Gun powder and cannons. 
Hope this helps! :)

Answer 2

Answer:

Gunpowder and cannons.

Explanation:

This items and also numerals and decimal system, are examples of the cultural transfer among Indian, Arab and Europeans. Since the usage of gunpowder and cannons began in China and then exported to India and Middle East, by 1200 CE was evidence of the first cannons used by Arabs in Spain.

Taking this into account, option E is the most accurate.