Answer:
The answer is the Office of War Information
Step-by-step explanation:
The Office of War Information was the source of war propaganda in the US during this period of time.
The office was formed during the second world war. It's goal was the provision of propaganda material to people so as to greater support from them. The office had radio broadcasts, organized public meetings, printed various posters, pamphlets, books, and any other material that could get people in support of the cause.