Answer
(c)
Work Step by Step
Biomagnification is the process of accumulating toxins up a food chain, not the immediate effects of a chemical. Human cancer from pesticide exposure (a), feminization of male fish from DDT (b), thinning of bird eggshells (d), and increasing iron concentrations (e) are all examples of biomagnification or its consequences. Suffocation from inert ingredients is a direct poisoning or physical effect, not related to trophic level accumulation.
The answer is (c).
