To create a more hopeful mood based on the provided data, the first response would be the best choice:
"In radio, women account for 23 percent of news directors and 18 percent of general managers. Broadcast newsrooms offer women more opportunities, where they make up 31 percent of news directors and 20 percent of general managers."
This version emphasizes the progress and opportunities available to women in broadcast newsrooms, highlighting their representation in positive terms.