❓ Pregunta According to the passage, why are ecosystem services often undervalued in traditional markets?
- A. A. Because they are difficult to quantify in physical units.
- B. B. Because they are non-excludable and non-rivalrous, creating a market failure.
- C. C. Because developing countries lack the institutional capacity to regulate them.
- D. D. Because monetary valuation methods like contingent valuation are controversial.