The best answer here would be pencil.
Artists use pencil to make sketches and create studies. They then use these sketches and studies to create their final larger piece. They use pencil because it's quick, can be corrected, lightweight and easy to use. Before pencils artists would make charcoal drawings but once we had pencils it made sense to use them as they aren't messy like charcoal.
Seriously you want us to write you an entire essay?! What are you on because if your acting like this I need some of it.
A. The politics of peace and war in Europe at the time
Answer: Frank Lloyd Wright is the architect in the picture
Have a great day :)
