Video is now a permanent part of journalism. Based on what you know about the development of the photojournalism, which BEST explains how this became popular?
A:Graphic designers were able to create chyrons to identify news organizations.
B:Video footage became cheap and efficient to produce and could be made daily.
C:Graphic designers prefer to work with video footage, so they changed photojournalism.
D:Video footage is now much more available than photography, replacing photos entirely.