Answer:
Good choices are:
- It inspired anti-German sentiment.
- It encouraged Americans to help with the war effort.
- It brought back memories of lives lost because of a German attack.
Step-by-step explanation:
Firstly, the poster reminds a reader of the sinking of the liner Lusitania in May 1915 by a German vessel. I clearly points at German responsibility for this terrible act. Secondly, it calls American to enlist in the army, telling them it is their duty. And finally, though it doesn´t mention it explicitly, it implies that the loss of American lives must be "avenged". The phrase is: "It is your duty to take up the sword of justice to avenge this devil´s work."