Answer:
Picasso used Cubism
Step-by-step explanation:
In April 1937, Hitler bombed Guernica, a village in Spain. It moved Picasso immensely and expressed his outrage against the bombing. A large, mural-sized painting. Guernica is the most powerful response against the war in the 20th century. Picasso used Cubism, which was a revolutionary and new approach to represent reality. Cubism was invented about 1907–08 by Pablo along with Georges Braque. Picasso, by using Cubism, collected different elements of a subject in a lone picture, which resulted in paintings. Such a painting like Guernica appears abstract and fragmented.