我选了B,感觉读的更顺。答案是A...

小黛安

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
E.    There were concerns leading between 1876 and 1904 to the construction of three separate sewer systems for serving

jeforever

這題B時態不對, 在過去一段時間使用過去式, 改為have led變成這個concerns延續到現在了～改變句意
另外between 1876 and 1904 是修飾construction的~改到後面變成修飾了systems, 變成只有在這段時間的systems.改變句意!