system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A problem village is one wrhere -
assistant
The correct answer is  Ans. is i.e., All of the above o A problem village has been defined as oneWhere no source of safe water is available within a distance of 1.6 km, or Where water is available at a depth of more than IS meters, orWhere water source has excess salinity, iron, fluorides and other toxic elements, orWhere water is exposed to the risk of cholera.