Viral network marketing is to publicize the network through user word-of-mouth, and information spreads and spreads like a virus, using rapid replication to reach thousands and millions of audiences. According to the above definition, which of the following options does not apply viral Internet marketing methods? ['Some websites set a "forward" or "tell a friend" button under the post, so that the website information can be quickly forwarded to the personal page of the Internet user.', 'Some instant messaging tools have developed a "red envelope" function, allowing users to scramble to send red envelopes, and increase the installation of this communication tool.', 'A sports brand invites sports stars to shoot wonderful videos and promises in the video that if the number of reposts of the video exceeds a certain number, it will invite more stars to continue shooting new videos.', 'An online shopping website pushes emails of promotional information to all registered members, advertising for the upcoming big sale.']