Which of the following is a common competitive event in HOSA?

The Health Occupations Knowledge Exam is recognized as a common competitive event in HOSA. This exam evaluates participants on their understanding of various health-related topics, fostering knowledge in fields pertinent to health professions. It emphasizes critical thinking and problem-solving skills, which are essential in the healthcare industry. By participating in this exam, students get the opportunity to demonstrate their academic readiness and healthcare knowledge, aligning with HOSA's mission to promote career development in health sciences.

Other options such as student council elections, leadership workshops, and science fair projects, while valuable activities within HOSA, do not classify as competitive events in the same way. Instead, these activities focus on leadership development, collaboration, and research skills, which are important but serve different purposes within the organization.