Recently, a new supermarket was opened in Changning District, Shanghai. From the appearance, this is a typical Chinese supermarket chain. The shelves are full of various foods and daily necessities. However, all the in-store products, although the appearance is not different from ordinary products It was empty inside, no signs of unpacking could be found on the packaging, and visitors had nowhere to know how the goods were "hollowed out". Although this was a short-selling supermarket, it was very popular. Which of the following, if true, best explains the above phenomenon:. ["Some buyers don't know it's empty.", 'Empty packaging is actually an art commodity.', 'There are some empty packages that are prank props.', 'Discussion on the daily consumer culture caused by supermarkets.']