Cholera outbreaks often arise in camps established after a severe natural disaster. The list below gives some control measures that can be used to reduce the spread of cholera in these camps. Which of these control measures involves an economic factor?
- A1, 2, 3, 4 and 5
- B1, 3 and 5 only
- C2, 3, 4 and 5 only
- D2 and 4 only