First of all, there are many people in Xuzhou, and there are many people in every household in Xuzhou. After all, the development of Nantong is quite good. Choosing Nantong is a good choice. If you choose Jiangnan, it may not be suitable for them.
There are also many students in Xuzhou who go to school in Nantong.
In short, Nantong is their most suitable choice.