Mayor: The city council has proposed additional funding for the town library. However, the library's own studies show that fewer than 10% of town residents use the library. The city council claims that the library is underutilized because the books, electronic media, and computer equipment are outdated, and that if these were updated, more residents would use the library. However, the last time the town allocated additional funding to the library, usage of the library did not increase. Therefore the town should not allocate additional funding for the library.
Which of the following most seriously weakens the mayor's argument?
B选项说上一次增加图书馆投资建设时,资金主要用于维修楼梯和入口处的坡道,而这次的增资时为了升级books,electronic media,and computer equipment,所以这两次是没有可比性的,于是不能由“上一次allocated additional funding时没有增加图书馆的利用率”推出“这一次allocate additional funding for the library就不能增加图书馆的利用率”的结论