The red flag principle means that if the fact that the copyright infringement is obvious, the network service provider cannot pretend to be invisible, or shirk its responsibility by not knowing the reasons for the infringement. Based on the above definitions, which of the following are situations in which the Red Flag principle applies? ["Without the user's permission, client software can automatically scan and obtain user personal data.", 'A uses the free storage space provided by the Internet service provider to illegally operate pirated film and television works.', 'B uploads a popular TV series that is being premiered and is recommended by the website editor to the download homepage.', 'Bing obtained unauthorized programs on Internet TV with download function through a third party.']