What significant legislation was expanded in 1963 to encourage student organizations in vocational education?

The Vocational Education Act is the correct choice because it specifically focused on promoting vocational education and the establishment of student organizations associated with this educational path. In 1963, this act was expanded to provide more substantial support and resources for vocational education programs, reflecting the growing importance of skilled labor and the need for organized student participation in these fields. This expansion included provisions that aimed to enhance the training and educational opportunities available to students seeking careers in technical and vocational areas.

In contrast, the other options do not directly address the encouragement of student organizations within the realm of vocational education. For example, the Elementary Education Act primarily focused on funding and improving elementary education, while the High School Reform Act and Technical Skills Development Act do not specifically highlight the developments made in vocational education during the 1963 expansion. Therefore, the Vocational Education Act stands out as the key legislation relevant to this context.