Concept:Preventive maintenance involves actions taken to protect computer systems from damage, dust, heat, or static electricity.
Explanation:Tiles on the floor are easy to clean and limit dust and static, so they are acceptable.
Good ventilation keeps the computer room cool and prevents overheating.
Proper illumination ensures a safe and efficient working area.
Rugs and carpets attract dust and generate static electricity, which can damage computer parts.
Thus, rugs are not a preventive maintenance measure for a computer room.
Answer:Option B – The use of rugs.