Q's response serves to counter any use by M of the evidence about 85 to 90 year olds in supports of which one of the following hypotheses? 

请问老师这道题目的问题到底是说 Q 的假设还是 M 的假设? 如果是后者, 正常的语序应该是怎样的? 想了很久了一直想不通。谢谢老师! 

【答】Q's response serves to counter any use by M of the evidence about 85 to 90 year olds in support of which one of the following hypotheses?

这种问句属于不用助动词提前，而直接使用问号。介词短语in support of 是“支持”， 不是in supports of。

为了网友理解这个提问，我重新改写一下句子：

Q's response aims to counter M’s use of the evidence about 85 to 90 year olds. Which one of the following hypotheses does M’s evidence support?

【翻译】Q的回答旨在反驳M使用85岁到90岁之间的这些人作为证据；M的这个证据支持了下面哪一个假说？