Total harm to health experienced by an exposed group as a result of exposure to a radiation source?

• A. Detriment
• B. Risk
• C. Hazard
• D. Burden

Answer: (A)

The main idea is detriment—the total health harm experienced by a group from radiation exposure. Detriment combines how likely health effects are with how severe those effects would be, summed across all individuals in the exposed group. It captures the overall burden of radiation on a population, including serious outcomes like cancer and hereditary effects, weighted to reflect their impact.

This is why it best fits the question: it’s not just about the chance of harm (risk) or the potential to cause harm (hazard) or a general load (burden). Detriment specifically measures the population-wide health loss resulting from the exposure, which is the concept described.