What does the term 'blind spot' refer to in a vehicle?

The term 'blind spot' refers to areas around the vehicle that cannot be seen by the driver through standard mirrors. These are zones where a driver’s view is obstructed, meaning that even with properly adjusted mirrors, there are sections around the vehicle that remain invisible to the driver. This concept is crucial for safe driving, particularly when changing lanes or merging, as it highlights the importance of checking over one’s shoulder or using additional safety features such as cameras or sensors.

While the other options mention related concepts, they do not capture the full essence of what a blind spot entails. For instance, the idea of needing visibility in front of the vehicle or specifically mentioning parking does not encompass the broader range of areas around the vehicle that can become blind spots, nor does it consider the importance of being aware of these zones while driving in various situations.