GWD7-Q13:
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

Answer is B.

I thought B lacks a form of parallelism since Like the grassy fields and old pastures --- , the bird ----

Pathik

Only A and B comes close because of ||ism.
A- noun(grassy field) is compared with gerund(vanishing) also vanishing ... is result of... development does not establishes causel relationship.

B. the noun(grassy field) is comapared with the noun(bird). relationship of vanishing is much better.

Pathik

what is 'gwd7'?

remember, you shouldn't be posting questions in this folder from any sources other than the gmatprep tests on mba.com.
thank you