What discovery had a great impact on economic activity in the islamic empire?

Explanation:

The transition to paper by the medieval era. papermaking began in china but it was not active that is it was not used for economic purposes until when Muslims adopted the technology.it made the Muslims economy to grow vigorously creating systems of exchange, credit and long-distance communication between the buyers and the sellers.

answer: answer is (d)

explanation: it makes more sence than all the others and i know more stuff than you

me on my last question.