This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Water, Subject name: Social & Preventive Medicine
Per capita allowance of water per day is recommended at: 
Select and explain. 
A. 70-80 lit, B. 80-120 lit, C. 120-150 lit, D. 150-200 lit
D: 150-200 lit
Answer: D: 150-200 lit 
Explanation: Water supply considered adequate to meet the need for domestic purposes: Urban: 150-200 litres per capita per day Rural: 40-60 litres per capita per day Daily drinking water requirement: 2-3 litres per capita per day.