Final answer:
Eleanor Roosevelt made a significant contribution as a First Lady by encouraging a greater role for women in the federal government. Therefore, the correct option is C.
Step-by-step explanation:
Eleanor Roosevelt made a significant contribution as a First Lady by encouraging a greater role for women in the federal government.
She traveled, advocated for women's rights and civil rights, and used her popularity to create new opportunities for women in journalism.
Her conferences were covered by major news outlets and her decision to only admit female reporters created many new opportunities for women in journalism.