Let's analyze the argument presented by the Figorian Wildlife Commission:
They're suggesting that the development of wetlands for commercial and residential purposes has endangered many species. To counteract this, they propose that any future wetland development in Figoria should be offset by the construction of replacement wetland habitats, ensuring there is no net reduction in wetland area, and thus, no threat to the species living in them.
Given this, let's evaluate each answer choice:
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A. More species have been endangered by the development of wetlands than have been endangered by any other type of development.
This statement, while potentially concerning, is not a necessary assumption for the Wildlife Commission's argument. Their point doesn't hinge on wetland development being the worst type of development for species.
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B. The species indigenous to natural wetland habitats will survive in specially constructed replacement wetlands.
This choice directly relates to the Commission's main solution: creating replacement wetland habitats. If species can't survive in these constructed habitats, the solution wouldn't achieve its goal.
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C. In nations that are primarily agricultural, wetland development does not need to be regulated.
The argument presented by the Wildlife Commission doesn't mention or rely on the specifics of agricultural nations. This isn't a necessary assumption for their proposal.
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D. Figorian regulation of development has in the past protected and preserved wildlife.
The Wildlife Commission's argument focuses on future regulations, not past ones. Whether or not past regulations were effective doesn't necessarily impact the validity of the proposed future regulations.
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E. The species that inhabit Figorian wetlands are among the most severely threatened of the designated endangered species.
The severity of the threat to Figorian wetland species, while potentially important, is not a direct assumption underlying the Commission's main point, which is about avoiding any additional threat from future development.
Given the analysis, the best choice that supports the Figorian Wildlife Commission's argument is B