How did Abstract art come about?

Abstract art has its origins in the 19th century. ... During the four or five years preceding World War I, such artists as Robert Delaunay, Wassily Kandinsky, Kazimir Malevich, and Vladimir Tatlin turned to fundamentally abstract art.

This sounds like a personal reflection on something you did. it is asking the hardest part, or a part you may have struggled with on an informal interview you must have done. it is also asking advice you'd give someone else for the process of completing an informal interview, so you should write something that would . for example, maybe the first thing they should do, something they should include.