The correct answer is to give out information about the progress of the war.
The office of war information was a way of the government to create a single source of news about the war to the American public. They distributed posters, photographs, radio shows, films. This was a way to control information about the war and control public perception of it.
The government approved everything that would go out of the office. Anything that could damage the American Government would be removed from public consumption.