Final answer:
The main types of workers that the FM should take into account in workplace risk assessment are all staff, regardless of role. Therefore, the correct option is B. All staff, regardless of role.
Step-by-step explanation:
The main types of workers that the Facility Manager (FM) should take into account in a workplace risk assessment are All staff, regardless of role. This includes not only managerial staff but also those who are directly involved in physical work.
By considering all staff, the FM can ensure that the risk assessment comprehensively covers the entire workforce, taking into account different tasks and responsibilities. This is important because even non-physical roles can have potential risks associated with them, such as ergonomic risks in office work or mental health hazards in high-stress roles.