Sunday........where did it vanish.....(in thin air)

Swoosh.......is what the sunday felt like.....did not even know it was a sunday till it ended.........what a day today..........
Work does not seem to end......It seems will have to organize a little better........:)
BTW the weather here is awesome.....it was raining yesterday and has cooled down.....the winds are cold and refreshing............
Today read an interesting case about some strike that happened on an international space station....Tomorrow we will be playing the role of mission control........Different, new and loving it........
So here goes today GMAT question......My old time difficult one......please understand the logic behind it....Its not just getting the right answer but knowing why is it right...Please hightlight to check answer below

While depressed property values can hurt some large investors, they are potentially devastating for homeowners, 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 The answer is A