Crowdfunding: refers to the method of raising funds through the Internet to publish fundraising projects, implementation plans, and investment returns. Its constituent elements include promoters who are creative but lack funds, and supporters who are interested in the story or return of the fundraiser Internet platforms that serve as a connection between the two. which of the following are crowdfunding behaviors? ['After the earthquake, the City Red Cross released information on the disaster situation in a timely manner using various online platforms such as the official website, Weibo, and WeChat, and appealed to the public to donate and donate materials to help the victims to rebuild their homes.', 'Xiao Tao has insufficient funds to return to his hometown after graduating from university. He published his own ideas online, sought financial assistance from people from all walks of life, and quickly got through the difficulties with the help of netizens.', 'A student of a middle school suffered from leukemia. The school posted a fundraising event online. Within two days, it raised tens of thousands of yuan. After the post was reprinted, more and more charities were donated.', 'In order to hold a personal art exhibition, a young artist raised a large number of start-up funds through the Internet. After the successful completion of the art exhibition, he fulfilled the promise of allowing investors to enjoy the treatment of exhibits.']