❓ 質問 According to the passage, which of the following best illustrates the concept of 'hysteresis' in ecosystem management?
- A. A lake that quickly returns to its clear-water state once nutrient inputs are reduced.
- B. A forest that gradually recovers its original species composition after a fire without active intervention.
- C. A degraded coral reef that remains algae-dominated even after fishing pressure is removed due to reinforcing feedbacks.
- D. A grassland that shifts to shrubland permanently after a single drought, with no possibility of recovery.