GWD30-Q34,无前人讨论

34. GWD30-Q34:

Books in European
libraries last longer than books in libraries in the United States
            because, although the
climate in Europe is fairly humid, libraries there
are not subjected to the extremes of temperature and humidity that damage collections in
the United States.

A.     
because, although the climate in Europe is fairly humid,
libraries there are not subjected to the extremes of temperature and humidity
that

B.      
because, although the climate in Europe is fairly humid,
libraries there are not subject of the extremes of temperature and humidity as
those that

C.     
because, although the climate in Europe is fairly humid,
libraries there are not subjected to the extremities of temperature and
humidity as

D.     
because the climate in Europe is fairly humid, but
still libraries there are not subject of the extremes of temperature and
humidity as

E.      
because the climate in Europe is fairly humid, but
libraries there are not subjected to the extremities of temperature and
humidity such as those that

这道题目选啥呢？？ 我觉得只有A对啊！！！

B中的Those指代那个呢？？？