Answer: The art produced in the 1920s reflected a mood of uncertainty because of the people who made it as well as the time period they were in (post WW1)
Explanation: The 1920s art would reflect uncertainty because it was pretty depressing. The people making the art had just came out form serving in WW1 and they saw the world in a different way. They were traumatized and expressed that in their work. This also goes for the writing since people wrote of their experiences in WW1 and published it. Some people's work even talked about the economic situation as it states on the slide, which for a lot of people wasn't very good.
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