How far ahead must a vehicle move before you begin to move, if there is a car in front of you?

The correct answer indicates that a driver should wait until the vehicle in front has moved at least 15 feet ahead before they begin to move. This distance provides sufficient space to ensure that the driver can safely maneuver their own vehicle without getting too close or causing a potential collision.

Maintaining this distance also allows for increased visibility and reaction time to ensure a smooth and safe transition into traffic. As the vehicle in front moves several feet ahead, it creates a buffer zone that helps in assessing the situation on the road, including the movements of other cars and any pedestrians that may be in the vicinity. This practice enhances overall safety and compliance with traffic norms.

The other options suggest different distances, but 15 feet is recognized as a reasonable and practical amount of space to maintain during these situations, balancing safety and efficiency in urban driving conditions.