Zhouzhuang's tourism income has exceeded the 100 million yuan mark for many years in a row. In southern Jiangsu, although the cultural ancient towns comparable to Zhouzhuang are not in the minority, the tourism income can only be expected from Zhouzhuang. An old man in the local area said that Chen Yifei painted in the 1970s The double bridge here, this painting was awarded in the United States and was collected by the then oil tycoon Hamer. At the time of Deng Xiaoping's visit to the United States in 1979, Hamer gifted the painting to him and said that it was near Shanghai, China A small town. After several media recommendations, Zhouzhuang has become a tourist hot spot, which has led to the tourism of the entire Zhouzhuang. Now, browsing the ancient town of Jiangnan, Zhouzhuang has become the first choice. What is the most correct understanding of this text? ['Cultural communication can be an important opportunity for urban development.', 'Tourism is a breakthrough for the rapid development of urban economy.', 'Cultural exchange is an important content of international exchange.', 'Culture is an important force for economic development.']