A) Rice, wheat, barley, and miller were popular trade items all throughout India. Other items such as Iron came from certain Indian areas, such as near the Ganges river. Copper came from Deccan, salt from coastal regions, and paper from southern India. 

B)The Indian, Arabian, and Bay of Bengal oceans were used to exchange trade items. Some key trade routes in India include; Quilon to Mombasa, Cambay to Calicut, and Masulipatam to Melaka. 

C) In response to the commercial market's demand, Indian artisans built industries around the production of cotton textiles, sugar refining, leather tanning, stone carving, and carpet weaving. 

Trade