Answer: B)Vlogs
Step-by-step explanation:The video recorded in the form of web television by any particular individual to create the content regarding their adventure,review of any product and many other factors for sharing purpose. Vlog is the shortened form of "video log". After creation is posted on the internet sites so that other people can get to know about it.
Other option given is the question are false because podcast are related as the audio files,blogs consist mainly content in the textual form describing any event and other adventures and Newsgroups are related with the news .Thus the correct option is option(B) .