159.While depressed property values can hurt some large investors, they are potentially devastating for home-owners, whose equity—in many cases representing a life’s savings—can plunge or even disappear. (A) they are potentially devastating for homeowners, whose (B) they can potentially devastate homeowners in that their (C) for homeowners they are potentially devastating, because their (D) for homeowners, it is potentially devastating in that their (E) it can potentially devastate homeowners, whose

答案是a，没有什么疑问，但是想到关于一个定语从句的疑问。

a中的whose应该是定指前面的homeowners，根据og前面有一题的解释，感觉这样说言外之意还有不是这样的homeowner，而其他的选项都说就这么一种homeowner，不知道这样判断是否正确？

期待大家的指教！！！