❓ 题目 According to the passage, what is the main argument in favor of the economic valuation of ecosystem services?
- A. A. It prevents the commodification of natural ecosystems.
- B. B. It helps policymakers recognize the trade-offs between development and conservation.
- C. C. It ensures that all ecosystems are preserved regardless of cost.
- D. D. It eliminates the need for intrinsic conservation values.