They help the actor eliminate stage fright and help in preparedness.
The answer is C. An Aztec Calendar
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It is often associated with Italy and most famous Renaissance painters are Italian as well (da Vinci, Michelangelo, Raphael, etc).
Before photography, visual arts was one of the only way to capture the world. Famous artists painted portraits of significant people and beautiful landscapes which are very time consuming. I would say photography in its early days is simply a realistic window to see the world and the people in it. The inventors of photography believed that photos are no longer drawn by hand, but "written by light".
An article on petapixel says: The use of cameras has allowed us to capture historical moments and reshape the way we see ourselves and the world around us.
Most likely the availability of live performances online