Sentence Correction

In many of the world's regions, increasing pressure on water resources has resulted both from expanding development, changes in climate, and from pollution, so that the future supply in some of the more arid areas is a concern going forward.

A. both from expanding development, changes in climate, and from pollution, so that the future supply in some of the more arid areas is a concern going forward
B. both from expanding development or changes in climate, and pollution, so that future supplies in some of the more arid areas are a concern
C. from expanding development, changes in climate, and also from pollution, so that the future supply in some of the more arid areas is a matter of concern going forward
D. from expanding development, changes in climate, and pollution, so that future supplies in some of the more arid areas are a concern
E. from expansion of development, changes in climate, and from pollution, so that supplies in some of the more arid areas are a future concern

OA: D

GMATGuruNY wrote:

saswata4s wrote:In many of the world's regions, increasing pressure on water resources has resulted both from expanding development, changes in climate, and from pollution, so that the future supply in some of the more arid areas is a concern going forward.

A. both from expanding development, changes in climate, and from pollution, so that the future supply in some of the more arid areas is a concern going forward
B. both from expanding development or changes in climate, and pollution, so that future supplies in some of the more arid areas are a concern
C. from expanding development, changes in climate, and also from pollution, so that the future supply in some of the more arid areas is a matter of concern going forward
D. from expanding development, changes in climate, and pollution, so that future supplies in some of the more arid areas are a concern
E. from expansion of development, changes in climate, and from pollution, so that supplies in some of the more arid areas are a future concern

A: both from development, changes, and...pollution
both cannot serve to introduce a list of three things.
both...and must serve to refer to EXACTLY TWO things.
Eliminate A.

both...and must serve to connect PARALLEL FORMS.
B: both FROM...and POLLUTION
Here, from (preposition) and pollution (noun) are not parallel forms.
Eliminate B.

In C, future and going forward are redundant.
Eliminate C.

E: from expansion, changes and from pollution
Here, from serves to introduce the first and third entries in the list but not the second.
The result is a lack of parallelism.
Parallel:
from expansion, from changes, and from pollution
from expansion, changes, and pollution
Eliminate E.

The correct answer is D.

How does "so that" fit into the right answer in this sentence? Isnt the meaning of this phrase "intention" ?

rahulk123 wrote:How does "so that" fit into the right answer in this sentence? Isnt the meaning of this phrase "intention" ?

Generally:
NO COMMA + so that serves to introduce the INTENT of the preceding clause.
COMMA + so that serves to introduce the CONSEQUENCE of the preceding clause.
OA: In many of the world's regions, increasing pressure on water resources has resulted from expanding development, changes in climate, and pollution, so that future supplies in some of the more arid areas are a concern.
Here, the clause in blue is a consequence of the clause in red.