Refrigerators

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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.
A

[brb588]

Why would there be edges still if the fridge's shelves are round? It must be because the actual fridge cannot be made round (cylindrical). It's A right off the bat.

[maihuna]

I opted C in my attempt, for A to be an obvious choice...I think more logic need to be thrown

[brb588]

The argument states that we have round shelves that rotate. Anything round does not have corners. However, the conclusion is that the food on rotating shelves would fall off and end up in the rear corners of the fridge. The inside of the fridge has to contain corners some place other than the shelves. If the fridge's interior was cylindrical, this problem would not exist--A.

C is overreaching. The author only cares about the rotating shelves, not about any other solution.

[ashley.com]

In this case i agree with OA