Final answer:
Your employer needs to provide you with on-the-job training when you are required to operate an unfamiliar order picking forklift. The correct answer would be b).
Step-by-step explanation:
In a scenario where you are required to operate an order picking forklift that you are unfamiliar with, your employer should provide you with on-the-job training. This is essential for you to learn how to safely and effectively operate the forklift.
While a comprehensive manual on forklift operation could be helpful as a reference, it is not sufficient on its own to ensure proper training and understanding. Personal protective equipment (PPE) is also important, but it is not the only requirement in this scenario.
Therefore, the correct answer would be b) On-the-job training.