What action should you take when it is obvious that you are about to turn?

Answer: B — Use a turn signal

Using a turn signal is essential when you are about to turn, as it serves to communicate your intended actions to other road users. Signaling not only helps other motorists and pedestrians anticipate your movement but also enhances safety by reducing the likelihood of accidents. When you activate your turn signal, you provide a visual cue, informing others that you plan to change direction. This communication is vital, especially in traffic where sudden or unannounced movements can lead to confusion and increase the risk of collisions. In contrast, ignoring signaling can create unexpected situations for other drivers or cyclists who may be following you. Turning without signaling can also be dangerous, as it fails to convey your intention, leading to potential misunderstandings. Abruptly slowing down may cause tailgating drivers to react unpredictably and can result in rear-end collisions. Therefore, the practice of consistently using turn signals when intending to turn is a fundamental aspect of safe and responsible riding and driving.