The mission of Career and Technical Student Organizations (CTSOs) encompasses various aspects of student development and preparation for career readiness. Among the options provided, the most aligned with the overall mission of CTSOs would be:
C. give students additional opportunities outside the classroom to gain work experience
This option emphasizes the broad goal of CTSOs to enhance students’ practical skills and experiences that are essential for their future careers. However, it's worth noting that other options also reflect important aspects of CTSOs, such as identifying leadership skills and conducting competitions.