Rc OFFICIAL GUIDE 100题句子不懂，请帮忙

黄皮书100题，问题，觉得这句话读起来极费神，读了半天还没有搞出在说什么，不知道有什么简便办法，

希望大虾帮我用语法的方法分析断句一下，不甚感激

  Any of the following ,if true ,is a valid reason for benchmarking the performance of a company against companies  with which it is not in competition rather than against competition EXCEPT