Based on a book or not, I will say the answer is A because the water is most likely suitable for drinking and it will allow them to not travel as far as they used to to have obtained water.
Answer: What book or thing is this on??
Explanation:
we no so little about the civiliazation because they were lost for many many years and evidence we have is that they had sewer systems and bathrooms they also had there building evenly apart
15th to the 17th centuries were the Age of Exploration
