Advertising: refers to the goods or services provided directly or indirectly by a commodity operator or service provider for commercial purposes, through a certain medium or form, such as newspapers, television, street signs, shop windows, etc. Publicity campaigns undertaken. Which of the following belongs to advertising campaigns? ['The owner of the steel yard gave a gift of one million yuan to the contractor in the neighboring county in order to better sell steel.', 'Obama spends a lot of money on television and newspapers in order to become president.', 'The company requires a uniform brand for office computers.', 'Li Ning brand clothing sponsored the French sports delegation to go to the Olympic Games to obtain good social and economic benefits.']