quickly multiplied and spread throughout the country. brought over 24 rabbits to hunt for sport, but the rabbits The overpopulation of rabbits also led to soil erosion, A British settler in Australia. Thomas Austin, peted with native species for food and resources. The rabbits ate large amounts of vegetation and com which contributed to the degradation of farmland and decreased agricultural productivity. Whic O A. Diminishing returns. h economic concept does this illustrate? O B. Sunk cost fallacy. O C. The marginal principle. * O D. Unintended consequences