Respuesta :
Answer:
Option A.
Explanation:
The use of paper currency, is the right answer.
Throughout the early Islamic world, trade and commerce played a significant role. Trading networks during this time covered most of the world including China, Africa, and Europe. The Islamic merchants used both coins (Dinar- gold coin and Dirham- silver coin) and paper currency (suftaja) in their business. The practice of paper currency was later adopted by the Europeans.