Impact of Insecticide-Treated Nets on Child Mortality

Steps:

• Identify total annual malaria deaths in children under 5: approximately 400,000.
• Determine ITN coverage rate: 50-60% in high-burden areas.
• Calculate lives saved: ITNs reduce mortality by 20-30%, yielding 231,000 saved.
• Verify against global health data from WHO.

Why C is correct:

• Matches WHO estimates of 231,000 children under 5 saved annually by ITNs through malaria prevention.

Why the others are wrong:

• A: Underestimates by confusing with partial regional data.
• B: Doubles a subset figure, ignoring full global impact.
• D: Reflects outdated or localized stats, not current totals.

Final answer: C