What should a driver do if their turn signals are not functioning?

Answer: B — Use hand/arm signals

When turn signals are not functioning, using hand or arm signals is the appropriate action for a driver to take. Hand or arm signals communicate the driver’s intent to other road users, maintaining safety and awareness on the road. This method of signaling helps ensure that other drivers and pedestrians understand when a vehicle intends to turn or change lanes, thus reducing the risk of accidents. Using hand or arm signals is particularly important because it adheres to the principles of safe driving and communication. It allows the driver to effectively convey their actions in a way that compensates for the malfunctioning signals. In contrast, ignoring the turn signals or proceeding without any form of signaling undermines road safety and can lead to confusion among surrounding drivers. Additionally, changing lanes without signaling would create unnecessary risks, as it would not provide any indication of intent to other road users, making a potential accident more likely.