Final answer:
A driver must possess their driver's license and medical certificate prior to leaving the terminal. These documents ensure the driver is legally permitted to drive and is medically fit, which are fundamental for compliance with safety regulations.
Step-by-step explanation:
Before a driver leaves the terminal, they must possess certain items to ensure they are compliant with various regulations and prepared for the journey ahead. The correct answer to what a driver must possess is: A) Driver's license and medical certificate. These documents provide proof of the driver's legal ability to operate a vehicle and also confirm that the driver is medically fit for the job. In addition to a driver's license and medical certificate, carrying a vehicle inspection report and insurance documents is also essential, ensuring the vehicle is safe to operate and adequately insured.
Although a logbook and fuel card, route plan and emergency kit, and other such items are important for a driver to have, they are not as critical as the driver's license and medical certificate for simply leaving the terminal. It is essential that these requirements are met to maintain safety and compliance with regulations.