At what age must a bus driver have a physical exam every year?

Answer: C — 65

A bus driver is required to undergo a physical examination annually once they reach the age of 65. This is in line with regulations that aim to ensure the safety of both the driver and the passengers they transport. As drivers age, there may be an increased potential for health issues that could impair their ability to operate a bus safely. Regular physical exams help identify any such concerns early, allowing for proper management and ensuring that only those who are fit to drive are allowed to do so. The specific age of 65 has been established because it often marks a time when individuals may experience age-related changes that warrant closer monitoring. The other options represent ages at which a physical exam is not mandated annually, either because regulations set the threshold at a higher age or because drivers below that age may not require such frequent assessments unless specific health issues arise.