1.According to the article, why are supermarkets probably NOT the main reason groceries got so expensive?
2.The article says the "real cream" — the fatter profit margins — sits where in the food supply chain?
3.The article argues that grocery prices mostly rose because —
4."There is scant evidence that grocers gouge consumers." In this sentence, scant and gouge mean —
5.The article says "evidence of opportunism is hard to find" among grocers. Here, opportunism refers to —