WinWinMBA wrote:
The reason much refrigerated food spoils is that it ends up out of sight at the back of the shelf. So why not have round shelves that rotate? Because such rotating shelves would have just the same sort of drawback, since things would fall off the shelves' edges into the rear corners.
Which of the following is presupposed in the argument against introducing rotating shelves?
(A) Refrigerators would not be made so that their interior space is cylindrical.
(B) Refrigerators would not be made to have a window in front for easy viewing of their contents without opening the door.
(C) The problem of spoilage of refrigerated food is not amenable to any solution based on design changes.
(D) Refrigerators are so well designed that there are bound to be drawbacks to any design change.
(E) Rotating shelves would be designed to rotate only while the refrigerator door was open.
Refrigerated food spoils because it falls at the back of the shelf.
Plan: Have round shelves that rotate
Drawback of Plan: Round rotating shelves would have just the same sort of drawback, since things would fall off the shelves' edges into the rear corners.
Question: What is presupposed in the drawback of plan?
(A) Refrigerators would not be made so that their interior space is cylindrical.
The drawback assumes that the refrigerator will still have rear corners. What if the fridge has cylindrical interior space? Then there will be no rear corners.
(B) Refrigerators would not be made to have a window in front for easy viewing of their contents without opening the door.
The argument does not talk about viewing from a closed door.
(C) The problem of spoilage of refrigerated food is not amenable to any solution based on design changes.
The drawback does not say that there is no design change based solution.
(D) Refrigerators are so well designed that there are bound to be drawbacks to any design change.
This option means that refrigerators are so well (perfectly) designed that any change you make to their design will lead to problems.
The drawback does not say that every design change will have problems.
(E) Rotating shelves would be designed to rotate only while the refrigerator door was open.
Door open or close is irrelevant.
Answer (A)