Final answer:
The 'Facility Maintenance' area of a general safety audit encompasses both electricity and plumbing. Electrical Safety mainly focuses on preventing hazards through systems and devices, such as plastic insulation, which protects against thermal and shock hazards.
Step-by-step explanation:
Areas Covered in a General Safety Audit
The area of a general safety audit that covers both electricity and plumbing is ‘Facility Maintenance’ (Option A). Electrical Safety (Option B) typically focuses on the systems and devices that are employed to prevent electrical hazards. For instance, plastic insulation on live or hot wires is a safety feature designed to prevent both thermal and shock hazards, ensuring that the electrical systems are safe to use. Plumbing Regulations (Option C) would be specific to the plumbing aspects, whereas Environmental Safety (Option D) would generally revolve around practices that ensure the safety of the environment, which could indirectly include electricity and plumbing.