When should you use your turn signal?

Answer: B — Before changing lanes or turning

Using your turn signal before changing lanes or turning is crucial for safe driving and effective communication with other road users. The turn signal is a vital indicator that allows other drivers, cyclists, and pedestrians to anticipate your movements. This enhances safety by reducing the risk of accidents caused by sudden changes in direction that other drivers may not expect. When you're preparing to change lanes, signaling ahead of time informs other motorists of your intent, allowing them to adjust their speed or position accordingly. Similarly, when you're planning to make a turn, signaling provides a clear message to those around you about your next action. This practice is not only a best practice for road safety but is also a legal requirement in most driving jurisdictions, including Connecticut. In contrast, the other options provided do not encapsulate the primary purpose and appropriate use of turn signals. For example, only signaling in parking lots or when being followed does not promote the same level of safety and is not comprehensive enough. Using turn signals solely when approaching a stop sign also neglects the broader context where signaling is beneficial for lane changes and other navigational decisions on the road.