GWD语法题，求解！

小宇宙2010

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 industrial development and of changes in farming practices.

a the sandpipers vanishing in the northeastern United States is a result of residential and industrial development and of changes in
b the bird itself is vanishing in the northeastern United States as a result of residential and industrial development and of changes in
c that the birds themselves are vanishing in the northeastern United States is due to residential and industrial development and changes to
d in the northeastern United States, sandpipers’ vanishing is due to residential and industrial development and to changes in
e in the northeastern United States, the sandpipers’ vanishing, a result of residential and industrial development and changing

painstak

选B？

小宇宙2010

谢谢。是的。但是为什么呢？

tingting520

"Like" -> there must be comparison in the sentence.
The sentence is comparing (grassy fields and old pastures) AND sandpiper, both are vanishing as described by the sentence.  Therefore, the second sentence must starts with either "the bird" or "sandpiper", any others are incorrect.  Only B is valid.

In A, "the sandpipers vanishing in the northeastern United States" becomes the comparing subject, which is incorrect.

小宇宙2010

Thanks for your help!