What are some potential downsides of flash mobs or art happenings ** No links or files, I will report your answer so it gets taken down

Anarrative piece of are ? a. tells a story or series of event b. serves as a remembrance of an event person c. display the likeness of a person, in order to document their existence d. relates the lives of important individuals

Which is a good guideline to follow when evaluating art

How were objects painted before cubism