This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'Safe water criteria include – a) Free from pathogensb) Free from harmful chemicalsc) Free from chlorined) Free from colour and odoure) Usable for agricultural purposes \nSelect and explain. \nA. acd, B. bcd, C. abc, D. abd', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Safe and wholesome water \n\nWater intended for human consumption should be both safe and wholesome.\nThis has been defined as :-\n\n\nFree from pathogenic agents.\nFree from harmful chemical substances.\nPleasant to the taste, i.e., free from colour and odour; and\nUsable for domestic purposes.\n\n\nWater is said to be polluted or contaminated when it does not fulfill the above criteria', 'role': 'assistant'}]