D.
Although letters may be informal as well, commercials tend to be the most informal.
I don’t know try C maybe that’s the answer
"Visualization<span> or visualisation (see spelling differences) is any technique for creating images, diagrams, or animations to communicate a message." I hope that helps.</span>
I believe it to be C. Desolation, solitary!
Hope this helps!
~BBGLUVER
