When can a driver legally stop on the freeway?

The scenario of legally stopping on a freeway involves adhering to specific regulations aimed at maintaining safety and traffic flow. The correct answer highlights that a driver may only stop in response to road signs. This is pivotal because road signs are strategically placed to convey critical information regarding stopping, parking, or other necessary actions based on road conditions or emergencies.

For example, a road sign might indicate a temporary stop due to construction or a detour. When a driver complies with these signs, it ensures they act in alignment with lawful and safe driving practices. Stopping for other reasons, such as taking a break or assisting another driver, could pose a danger on the freeway, where the flow of traffic is generally continuous and higher speed limits apply.

By following the guidance of road signs, drivers contribute to a safer driving environment, minimizing the potential for accidents or traffic disruptions.