During the Sangam Age, the centre of the Roman trade was in Arikamedu (option 2). Arikamedu, located near the present-day city of Puducherry in India, was a bustling port and a major trading center. It served as an important link between the Roman Empire and the South Indian kingdoms. The site of Arikamedu has revealed numerous artifacts including Roman pottery, coins, beads, and gems, indicating the extent of trade between the Romans and the locals. It is believed that goods like spices, silk, and precious stones were exchanged for Roman wine, glassware, and luxury items. The trade between the Romans and the South Indian kingdoms played a significant role in the cultural and economic development of the region during that time.