Answer:
(c) the internet
Step-by-step explanation:
You want to know what media the Office of War Information did not use.
War Information
The Office of War Information was an agency of the US Government established in June of 1942 for the purpose of promoting an understanding of the status and progress of World War II in the US and abroad.
The Internet was not invented until the 1960s, well after WWII had been concluded. So, the internet was not used by the Office of War Information.
Information about the war in the 1940s was disseminated using pamphlets, posters, movies, and other news outlets (radio, newspapers).