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
All of the following are true about "Safe and Wholesome Water", except:- 
Select and explain. 
A. It is free from color and odor, B. Free from pathogenic agents, C. It is unusable for domestic purpose, D. Free from harmful chemical pathogens
C: It is unusable for domestic purpose
Answer: C: It is unusable for domestic purpose 
Explanation: Safe and wholesome water is usable for domestic purposes Safe and wholesome water has been defined as: Free from pathogenic agents. Free from harmful chemical substances. Pleasant to the taste, i.e. free from colour and odour. Usable for domestic purposes. Water is said to be polluted/ contaminated when it does not fulfil the above criteria.