Which of the following techniques was commonly used in World War I propaganda to evoke strong emotions in the audience? D) Neutral language A) Subtle messaging B) Statistical data C) Graphic imagery

The question is asking about the techniques commonly used in World War I propaganda to evoke strong emotions in the audience. Propaganda is a method of communication that is used to influence the attitude of a community towards some cause or position. It often presents facts in a biased way to produce an emotional rather than a rational response. In the context of World War I, propaganda was used extensively to rally support for the war effort and to demonize the enemy. Among the options provided, neutral language, subtle messaging, and statistical data are less likely to evoke strong emotions compared to graphic imagery. Graphic imagery, which includes vivid and often disturbing visual representations, is known to be a powerful tool in propaganda as it can create a strong emotional response in the audience. Therefore, the correct answer is C) Graphic imagery.