This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Environment and Health, Subject name: Social & Preventive Medicine
All of the followings 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: Ans. c. It is unusable for domestic purposeSAFE AND WHOLESOME WATERIt is defined as water that is:Free from pathogenic agentsPleasant to taste (free from color and odor).Free from harmful chemical pathogensUsable for domestic purpose