Why does most citizen journalism appear in online outlets such as social media, blogs/websites, YouTubе, or podcasts, instead of in more traditional media like newspapers and TV programs?

The question below refers to the selection “ozymandias” by percy bysshe shelley. the traveler seems to believe that — a. monuments are eternal b. the passage of time is necessary and inevitable c. we must preserve relics of past civilizations d. even the greatest works are destroyed by time