Which organization sponsored the proposed student organization in 1940?

The correct choice relates to the establishment of the Future Business Leaders of America (FBLA). In 1940, the National Council for Business Education played a crucial role in sponsoring the proposed student organization. They recognized the need for a dedicated platform that would help prepare students for careers in business leadership. The influence of this council was instrumental in laying the groundwork for what would become FBLA.

The other organizations mentioned were significant in the field of business education but did not directly sponsor the creation of FBLA at its inception. They may have had varying roles in promoting business education and supporting educators but were not the primary sponsors of the initiative that led to the formation of FBLA. Understanding this context helps clarify why the National Council for Business Education is seen as the key organization responsible for the proposal at that time.