• paper

• textiles
• steel

The box lists examples of
A.
supplies that were made by Arab slaves and then sent to Europe and Asia.
B.
goods that were banned from being sold along most Arab trade routes.
C.
new inventions that spread to other countries by traveling on Arab trade routes.
D.
products that were first invented and introduced to Arabs by European merchants.

C. new inventions that spread to other countries by traveling on Arab trade routes.