求问新东方补充教材senction25-5

like the grassy fields and old pastures that the upland sandpiper needs for feeding and nesting when it returns in May after wintering in the Argentine Pampas, the sandpipers vanishing in the northeastern United States is a result of residential and development and of changes in farming practices.

B the bird itself is vanishing in the northeastern United States as a result of residential and induistrial development and of changes in

D in the northeastern United States, sandpipers' vanishing is due to residential and industrial development and to changes in

答案是B 我想知道D为什么不对？

谢谢！