Difficulty: Medium
Correct Answer: Both I and II follow
Explanation:
Given data
Concept/Approach (source control + behavior change)
Public health responses typically combine infrastructure solutions with risk communication to reduce exposure.
Step 1: Evaluate Action I
Providing safe water directly removes the hazard at the source—strongly justified.
Step 2: Evaluate Action II
Education empowers individuals to avoid unsafe sources and adopt household treatment.
Step 3: Joint adequacy
Together they reduce both systemic and behavioral risks, which is the most effective approach.
Verification/Alternative
Many successful water-safety programs pair supply improvements with hygiene education.
Common pitfalls
Treating the actions as substitutes; they address different failure points.
Final Answer
Both I and II follow.
Discussion & Comments