I think I misinterpreted this question…I thought that the question is saying that:

return= (1-0.75) * cost = 0.25*cost

since the home is sold “less than” 75% so house could be sold for 74% (or even lower) of the cost in which case the return would be = 0.26* cost.

This means that the ratio of return/cost has to be greater than 0.25 which is true for all cases so I chose option (E) Seven.

What is the question actually asking us and where exactly did I go wrong?