Roosevelt made conscious use of the media almost from the moment he entered the White House. His press conferences served to educate newspaper writers, and through them the nation, about the complex, novel measures he was advocating.

It can be inferred from the passage that Roosevelt

A. Improved the quality of journalism in the US.
B. Educated the nation about the press.
C. Did not use the media to influence public opinion,
D. Was a president who recognized the power of the press.