(A) Warner Bros.
(B) ** Office of War Information
(C) Office of Propaganda
(D) National War Communications Board.
EXPLANATIONS BELOW
Concept note-1: -The Committee on Public Information (CPI), also known as the Creel Committee after its chairman, George Creel, served as the first large-scale propaganda agency of the U.S. government.
Concept note-2: -Persuading Americans to support the war effort became a wartime industry, just as important as producing bullets and planes. The Office of War Information (OWI) was formed in 1942 to oversee the propaganda initiative, scripting and distributing the government’s messages.
Concept note-3: -The Committee on Public Information (1917–1919), also known as the CPI or the Creel Committee, was an independent agency of the government of the United States under the Wilson administration created to influence public opinion to support the US in World War I, in particular, the US home front.
Concept note-4: -1. During the First World War, propaganda was used around the world for fundraising, to build hatred of the enemy, and to encourage enlistment. Posters were an ideal method of communicating this propaganda, as they could be printed and distributed quickly in large quantities.