The correct option is A Tamralipti
Gupta Empire had robust international and internal trade despite fall in Roman trade. Riverine trade was also conducted through Ganges, Brahmaputra, Narmada, Krishna etc. The important ports included Tamralipti, Braoch, Kalyan, and Cambay. Broach (Bharuch. The main items of trade included spices, pearls, gold, horses etc. Tamralipti port handled the north Indian trade during the Gupta period. It is believed that Taralipti was the exit point of the Mauryan trade route for the south and south-east. It was located near Rupnarayana river.