The amount of energy it takes on peoples labor to physically carry water back to their village and worrying about evaportation in hot weather which makes water transportation party weather dependant.
Looking for a clean source of water in the first place is also a tough one.
Based on the quotations, the answer would be letter C. A teacher chooses to live in a home equipped with bare necessities because that is all truly needed to survive and be happy. The answer also describes how a Daoist living in classical China.
