The injury is caused by an accident due to an unsaved act and/or hazards due to the fault of the ______, caused by their ancestry and social environment.

• A. person
• B. supervisor
• C. management
• D. machine

Answer: (A)

This item tests an old view of accident causation that places responsibility on the individual whose unsafe act caused the injury, implying that personal factors like upbringing or social environment shape behavior. The blank should be filled with the person because only a person has ancestry and social background that could be said to influence actions leading to an unsafe act. The other options describe roles, an organizational level, or a nonhuman cause, which don’t align with the idea of fault being tied to a person’s background. In modern safety thinking, we focus on multiple contributing factors and system improvements rather than blaming a person.