What does the term 'blind spot' refer to?

The term 'blind spot' refers specifically to the areas around the vehicle that are not visible through the mirrors. These regions represent potential hazards because a driver cannot see vehicles, pedestrians, or obstacles that may be present in those zones. Understanding blind spots is crucial for safe driving, as it prompts drivers to physically look over their shoulders or use additional methods, such as checking for indicators of nearby vehicles, before changing lanes or merging. By being aware of these unseen areas, drivers can significantly reduce the risk of accidents.

Other suggested options, such as areas directly in front and behind the vehicle, are generally visible and can be monitored through the front and rear mirrors. Thus, they do not fall into the category of blind spots.