阅读下面语篇，从每题所给的A、B、C三个选项中， 选出各题的最佳选项。
During lunchtime in Shenzhen, workers often line up to buy food from street vendors(小贩). But in the past, they weren't allowed to set up their stalls(摊位) anywhere on the streets in China. The stalls were believed to be bad for the image of a city." We have to keep the streets clean and tidy," the city government of Beijing once said.
Things, though, began to change in recent months. In March, Shanghai and Hangzhou worked out detailed plans for stall businesses. And now Shenzhen is also preparing to welcome back street vendors. On April 28, it announced new guidelines on the management of street vending. Under the rules, street vendors will be allowed to operate in certain areas within the city. The new rules worked out on September 1,2023.
Most people are glad to see vendors getting back on the streets."I think it's good and convenient," said one user on Weibo." Vendors can make money, while customers will have more choice."
Street vending has long been considered as a lowly job in China. But in 2020, former Premier Li Keqiang pointed out that street vendors were the" lifeblood" of the country. Since then, many Chinese young people have seen the business as a way to get away from the stress of traditional work culture. Some of them can now be seen setting up stalls on weekends in Shanghai.
