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 IProviding safe water directly removes the hazard at the source—strongly justified.
Step 2: Evaluate Action IIEducation empowers individuals to avoid unsafe sources and adopt household treatment.
Step 3: Joint adequacyTogether they reduce both systemic and behavioral risks, which is the most effective approach.
Verification/AlternativeMany successful water-safety programs pair supply improvements with hygiene education.
Common pitfallsTreating the actions as substitutes; they address different failure points.
Final AnswerBoth I and II follow.
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