Ethan is preparing a report on World War II and wants to use relevant online sources. Which sources should he use? Check all that apply. a radio broadcast of an air raid on London, England, during World War II
a sound bite of German planes during a World War II air raid
a video segment of a cartoon popular around the time of World War II
an interview with an author talking about pre-World War II fashion
an image of a German U-boat, or submarine, used during World War II
a presidential speech given by Harry S. Truman during World War II