Answer:
A) The Thames supplied the country with fresh drinking water.
Step-by-step explanation:
What would be the BEST response to the question, "How did the Thames help the United Kingdom flourish?" A) The Thames supplied the country with fresh drinking water. B) The Thames prevented many enemies from invading the country. C) The Thames inspired many of the country's artists and writers. D) The Thames provided the country with a center for international trade.