The correct answer is C) A and B, psychology and new science.
The following post-war evets influenced most influenced artists: psychology and new science.
After the war, art developed a new array of sensibilities and aesthetic expressions to contrast the industrial age. Artist such as Virginia Woolf, Ernest Hemingway, John Doss Pasos, George Grosz, and Otto Dix, reshaped the way art was expressed. Psychology and new science represented a big influence on those artists. Modernism came years later and renovated the way art was expressed and presented.