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mymba99
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pmenon
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gmat blows
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bsd_lover
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A.
B and E have present perfect which makes them totally incorrect.
saravalli
Concerns about public health led to the construction between 1876 and 1904 of three
separate sewer systems to serve
metropolitan Boston.
A. Concerns about public health led to the construction between 1876 and 1904 of
three separate sewer systems to serve

B. Concerns about public health have led to the construction of three separate sewer
systems between 1876 and 1904 to serve
C. Concerns about public health have led between 1876 and 1904 to the construction
of three separate sewer systems for serving
D. There were concerns about public health leading to the construction between 1876
and 1904 of three separate sewer systems serving [passive and awkward]
E. There were concerns leading between 1876 and 1904 to the construction of three
separate sewer systems for serving [very awkward]
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suyashjhawar
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agree with Gmat blows.It is the concern that led to the construction of the sewer systems...I would say b for the following reasons.
DICTION+CLARITY+IDIOm(usage of between)
otherwise a.Definitely not c,d,e. :lol:
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buffdaddy
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Its A,

B is totally wrong for the use of "Have Led" which implies that the construction started at some point in the past but is continuing today.

example of the correct use could be

"The construction of the olympic sites have led to mass protests"
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mymba99
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OA is A.Thanks



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