Respuesta :
D. The Thames provided the country with a center for international trade.
The correct answer is D.
The Thames flows through the capital of the UK, London. Its condition of navigable river has tranformed the Port of London in a hub for international trade transactions between the UK and the rest of the world. The Thames is also connected to the British canal system and, hence, regions throughout the whole England can be reached from the sea through the river Tames.