Look for the structure and flow in the sentence. It's basically a contradiction: despite the arguments of some "heavyweights" that animals should be treated fairly and equal to humans, ecology sometimes favors treating animals in ways that might be considered unfair. What would suggest unfairness?
A) Protecting is not unfair. Eliminate
B) Culling is one means of population reduction and control. Keep it.
C) Murdering is extreme and doesn't make sense in the context. Eliminate
D) Reintroducing is not unfair. Eliminate
E) Depleting doesn't make sense in the context. Eliminate.
Answer: B
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