Distinguish inorganic mercury versus organic mercury exposure and their primary toxic effects.

• A. Inorganic mercury is primarily neurotoxic; organic mercury primarily affects the kidneys.
• B. Inorganic mercury affects the skin; organic mercury affects the lungs.
• C. Inorganic mercury largely affects kidneys; organic mercury (methylmercury) primarily causes neurotoxicity.
• D. Inorganic mercury and organic mercury have identical toxicity profiles.

Answer: (C)