When is it necessary to use your turn signals?

Using turn signals is essential for safe driving, particularly when changing lanes or making turns. Turn signals communicate your intentions to other drivers and pedestrians, helping to prevent accidents and misunderstandings on the road. When you signal before making a turn or lane change, it gives others time to adjust their speed or position accordingly, enhancing overall road safety.

This practice is part of defensive driving and is a legal requirement in many areas. While it is beneficial to signal at all times to indicate any driving change, the critical moments that necessitate the use of turn signals are specifically when you are changing lanes or making a turn. Therefore, option B captures the most critical situation where signaling is necessary for ensuring clarity and preventing collisions.

The other options suggest scenarios that either limit the use of turn signals or imply they aren't needed at all times, which contradicts the importance of consistent communication while driving.