Which population is most at risk from lead exposure according to the material?

• A. Adults.
• B. Elderly.
• C. Infants.
• D. Children.

Answer: (D)

Lead exposure is especially harmful to children because their nervous systems are still developing, making them more vulnerable to damage from even small amounts. Children absorb lead more efficiently from the environment, and a dose represents a larger proportion of their body weight, so the impact per pound is greater. Everyday behaviors—like putting hands and objects in their mouths—increase their ingestion of lead from dust, soil, or household items. This combination of higher absorption, developing brains, and exposure patterns means lead can cause long-term neurodevelopmental problems, including lower IQ and behavioral issues. While adults can experience health effects too, the changes seen in children tend to be more severe and lasting, which is why they’re identified as the population most at risk.