Answer:
The correct answer is - B. propaganda promoting total war efforts.
Step-by-step explanation:
The given poster is the Canadian propaganda poster during World War 2, various authors, filmmakers, and journalists generated propaganda to influence the citizen of the country towards promoting the war effort.
They are the new media, including cinema (film), newsreels, and radio to influence the population nationwide and overseas. Thus, these poster are example of propaganda promoting total war efforts.