Which of the following is a weakness in the argument above?
A) It fails to demonstrate that the clothes manufactured thirty years ago were of higher quality than clothes of all other eras.
B) It neglects the possibility that the clothes of thirty years ago, when prices are adjusted for inflation, cost more than clothes manufactured today.
C) It confuses the number of clothing items sold with the proportion of those items that are no longer useful.
D) It does not explain why clothing manufacturing standards have fallen over time.
E) It fails to take into account clothes made over thirty years ago that are no longer fit for sale.
답은 e)인데요 왜 그런가 이해가 않가서요..